Line data Source code
1 : /* Compiler driver program that can handle many languages.
2 : Copyright (C) 1987-2026 Free Software Foundation, Inc.
3 :
4 : This file is part of GCC.
5 :
6 : GCC is free software; you can redistribute it and/or modify it under
7 : the terms of the GNU General Public License as published by the Free
8 : Software Foundation; either version 3, or (at your option) any later
9 : version.
10 :
11 : GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12 : WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 : FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 : for more details.
15 :
16 : You should have received a copy of the GNU General Public License
17 : along with GCC; see the file COPYING3. If not see
18 : <http://www.gnu.org/licenses/>. */
19 :
20 : /* This program is the user interface to the C compiler and possibly to
21 : other compilers. It is used because compilation is a complicated procedure
22 : which involves running several programs and passing temporary files between
23 : them, forwarding the users switches to those programs selectively,
24 : and deleting the temporary files at the end.
25 :
26 : CC recognizes how to compile each input file by suffixes in the file names.
27 : Once it knows which kind of compilation to perform, the procedure for
28 : compilation is specified by a string called a "spec". */
29 :
30 : #define INCLUDE_STRING
31 : #define INCLUDE_VECTOR
32 : #include "config.h"
33 : #include "system.h"
34 : #ifdef HOST_HAS_PERSONALITY_ADDR_NO_RANDOMIZE
35 : #include <sys/personality.h>
36 : #endif
37 : #include "coretypes.h"
38 : #include "multilib.h" /* before tm.h */
39 : #include "tm.h"
40 : #include "xregex.h"
41 : #include "obstack.h"
42 : #include "intl.h"
43 : #include "prefix.h"
44 : #include "opt-suggestions.h"
45 : #include "gcc.h"
46 : #include "diagnostic.h"
47 : #include "diagnostics/sink.h"
48 : #include "pretty-print-urlifier.h"
49 : #include "flags.h"
50 : #include "opts.h"
51 : #include "filenames.h"
52 : #include "spellcheck.h"
53 : #include "opts-jobserver.h"
54 : #include "common/common-target.h"
55 : #include "gcc-urlifier.h"
56 : #include "opts-diagnostic.h"
57 : #include "auto-profile.h" /* for AUTO_PROFILE_VERSION. */
58 :
59 : #ifndef MATH_LIBRARY
60 : #define MATH_LIBRARY "m"
61 : #endif
62 :
63 :
64 : /* Manage the manipulation of env vars.
65 :
66 : We poison "getenv" and "putenv", so that all environment-handling is
67 : done through this class. Note that poisoning happens in the
68 : preprocessor at the identifier level, and doesn't distinguish between
69 : env.getenv ();
70 : and
71 : getenv ();
72 : Hence we need to use "get" for the accessor method, not "getenv". */
73 :
74 : struct env_manager
75 : {
76 : public:
77 : void init (bool can_restore, bool debug);
78 : const char *get (const char *name);
79 : void xput (const char *string);
80 : void restore ();
81 :
82 : private:
83 : bool m_can_restore;
84 : bool m_debug;
85 : struct kv
86 : {
87 : char *m_key;
88 : char *m_value;
89 : };
90 : vec<kv> m_keys;
91 :
92 : };
93 :
94 : /* The singleton instance of class env_manager. */
95 :
96 : static env_manager env;
97 :
98 : /* Initializer for class env_manager.
99 :
100 : We can't do this as a constructor since we have a statically
101 : allocated instance ("env" above). */
102 :
103 : void
104 312002 : env_manager::init (bool can_restore, bool debug)
105 : {
106 312002 : m_can_restore = can_restore;
107 312002 : m_debug = debug;
108 312002 : }
109 :
110 : /* Get the value of NAME within the environment. Essentially
111 : a wrapper for ::getenv, but adding logging, and the possibility
112 : of caching results. */
113 :
114 : const char *
115 1559077 : env_manager::get (const char *name)
116 : {
117 1559077 : const char *result = ::getenv (name);
118 1559077 : if (m_debug)
119 0 : fprintf (stderr, "env_manager::getenv (%s) -> %s\n", name, result);
120 1559077 : return result;
121 : }
122 :
123 : /* Put the given KEY=VALUE entry STRING into the environment.
124 : If the env_manager was initialized with CAN_RESTORE set, then
125 : also record the old value of KEY within the environment, so that it
126 : can be later restored. */
127 :
128 : void
129 1832069 : env_manager::xput (const char *string)
130 : {
131 1832069 : if (m_debug)
132 0 : fprintf (stderr, "env_manager::xput (%s)\n", string);
133 1832069 : if (verbose_flag)
134 6597 : fnotice (stderr, "%s\n", string);
135 :
136 1832069 : if (m_can_restore)
137 : {
138 6859 : char *equals = strchr (const_cast <char *> (string), '=');
139 6859 : gcc_assert (equals);
140 :
141 6859 : struct kv kv;
142 6859 : kv.m_key = xstrndup (string, equals - string);
143 6859 : const char *cur_value = ::getenv (kv.m_key);
144 6859 : if (m_debug)
145 0 : fprintf (stderr, "saving old value: %s\n",cur_value);
146 6859 : kv.m_value = cur_value ? xstrdup (cur_value) : NULL;
147 6859 : m_keys.safe_push (kv);
148 : }
149 :
150 1832069 : ::putenv (const_cast<char *> (string));
151 1832069 : }
152 :
153 : /* Undo any xputenv changes made since last restore.
154 : Can only be called if the env_manager was initialized with
155 : CAN_RESTORE enabled. */
156 :
157 : void
158 1144 : env_manager::restore ()
159 : {
160 1144 : unsigned int i;
161 1144 : struct kv *item;
162 :
163 1144 : gcc_assert (m_can_restore);
164 :
165 9147 : FOR_EACH_VEC_ELT_REVERSE (m_keys, i, item)
166 : {
167 6859 : if (m_debug)
168 0 : printf ("restoring saved key: %s value: %s\n", item->m_key, item->m_value);
169 6859 : if (item->m_value)
170 3427 : ::setenv (item->m_key, item->m_value, 1);
171 : else
172 3432 : ::unsetenv (item->m_key);
173 6859 : free (item->m_key);
174 6859 : free (item->m_value);
175 : }
176 :
177 1144 : m_keys.truncate (0);
178 1144 : }
179 :
180 : /* Forbid other uses of getenv and putenv. */
181 : #if (GCC_VERSION >= 3000)
182 : #pragma GCC poison getenv putenv
183 : #endif
184 :
185 :
186 :
187 : /* By default there is no special suffix for target executables. */
188 : #ifdef TARGET_EXECUTABLE_SUFFIX
189 : #define HAVE_TARGET_EXECUTABLE_SUFFIX
190 : #else
191 : #define TARGET_EXECUTABLE_SUFFIX ""
192 : #endif
193 :
194 : /* By default there is no special suffix for host executables. */
195 : #ifdef HOST_EXECUTABLE_SUFFIX
196 : #define HAVE_HOST_EXECUTABLE_SUFFIX
197 : #else
198 : #define HOST_EXECUTABLE_SUFFIX ""
199 : #endif
200 :
201 : /* By default, the suffix for target object files is ".o". */
202 : #ifdef TARGET_OBJECT_SUFFIX
203 : #define HAVE_TARGET_OBJECT_SUFFIX
204 : #else
205 : #define TARGET_OBJECT_SUFFIX ".o"
206 : #endif
207 :
208 : static const char dir_separator_str[] = { DIR_SEPARATOR, 0 };
209 :
210 : /* Most every one is fine with LIBRARY_PATH. For some, it conflicts. */
211 : #ifndef LIBRARY_PATH_ENV
212 : #define LIBRARY_PATH_ENV "LIBRARY_PATH"
213 : #endif
214 :
215 : /* If a stage of compilation returns an exit status >= 1,
216 : compilation of that file ceases. */
217 :
218 : #define MIN_FATAL_STATUS 1
219 :
220 : /* Flag set by cppspec.cc to 1. */
221 : int is_cpp_driver;
222 :
223 : /* Flag set to nonzero if an @file argument has been supplied to gcc. */
224 : static bool at_file_supplied;
225 :
226 : /* Definition of string containing the arguments given to configure. */
227 : #include "configargs.h"
228 :
229 : /* Flag saying to print the command line options understood by gcc and its
230 : sub-processes. */
231 :
232 : static int print_help_list;
233 :
234 : /* Flag saying to print the version of gcc and its sub-processes. */
235 :
236 : static int print_version;
237 :
238 : /* Flag that stores string prefix for which we provide bash completion. */
239 :
240 : static const char *completion = NULL;
241 :
242 : /* Flag indicating whether we should ONLY print the command and
243 : arguments (like verbose_flag) without executing the command.
244 : Displayed arguments are quoted so that the generated command
245 : line is suitable for execution. This is intended for use in
246 : shell scripts to capture the driver-generated command line. */
247 : static int verbose_only_flag;
248 :
249 : /* Flag indicating how to print command line options of sub-processes. */
250 :
251 : static int print_subprocess_help;
252 :
253 : /* Linker suffix passed to -fuse-ld=... */
254 : static const char *use_ld;
255 :
256 : /* Whether we should report subprocess execution times to a file. */
257 :
258 : FILE *report_times_to_file = NULL;
259 :
260 : /* Nonzero means place this string before uses of /, so that include
261 : and library files can be found in an alternate location. */
262 :
263 : #ifdef TARGET_SYSTEM_ROOT
264 : #define DEFAULT_TARGET_SYSTEM_ROOT (TARGET_SYSTEM_ROOT)
265 : #else
266 : #define DEFAULT_TARGET_SYSTEM_ROOT (0)
267 : #endif
268 : static const char *target_system_root = DEFAULT_TARGET_SYSTEM_ROOT;
269 :
270 : /* Nonzero means pass the updated target_system_root to the compiler. */
271 :
272 : static int target_system_root_changed;
273 :
274 : /* Nonzero means append this string to target_system_root. */
275 :
276 : static const char *target_sysroot_suffix = 0;
277 :
278 : /* Nonzero means append this string to target_system_root for headers. */
279 :
280 : static const char *target_sysroot_hdrs_suffix = 0;
281 :
282 : /* Nonzero means write "temp" files in source directory
283 : and use the source file's name in them, and don't delete them. */
284 :
285 : static enum save_temps {
286 : SAVE_TEMPS_NONE, /* no -save-temps */
287 : SAVE_TEMPS_CWD, /* -save-temps in current directory */
288 : SAVE_TEMPS_DUMP, /* -save-temps in dumpdir */
289 : SAVE_TEMPS_OBJ /* -save-temps in object directory */
290 : } save_temps_flag;
291 :
292 : /* Set this iff the dumppfx implied by a -save-temps=* option is to
293 : override a -dumpdir option, if any. */
294 : static bool save_temps_overrides_dumpdir = false;
295 :
296 : /* -dumpdir, -dumpbase and -dumpbase-ext flags passed in, possibly
297 : rearranged as they are to be passed down, e.g., dumpbase and
298 : dumpbase_ext may be cleared if integrated with dumpdir or
299 : dropped. */
300 : static char *dumpdir, *dumpbase, *dumpbase_ext;
301 :
302 : /* Usually the length of the string in dumpdir. However, during
303 : linking, it may be shortened to omit a driver-added trailing dash,
304 : by then replaced with a trailing period, that is still to be passed
305 : to sub-processes in -dumpdir, but not to be generally used in spec
306 : filename expansions. See maybe_run_linker. */
307 : static size_t dumpdir_length = 0;
308 :
309 : /* Set if the last character in dumpdir is (or was) a dash that the
310 : driver added to dumpdir after dumpbase or linker output name. */
311 : static bool dumpdir_trailing_dash_added = false;
312 :
313 : /* True if -r, -shared, -pie, -no-pie, -z lazy, or -z norelro were
314 : specified on the command line, and therefore -fhardened should not
315 : add -z now/relro. */
316 : static bool avoid_linker_hardening_p;
317 :
318 : /* True if -static was specified on the command line. */
319 : static bool static_p;
320 :
321 : /* Basename of dump and aux outputs, computed from dumpbase (given or
322 : derived from output name), to override input_basename in non-%w %b
323 : et al. */
324 : static char *outbase;
325 : static size_t outbase_length = 0;
326 :
327 : /* The compiler version. */
328 :
329 : static const char *compiler_version;
330 :
331 : /* The target version. */
332 :
333 : static const char *const spec_version = DEFAULT_TARGET_VERSION;
334 :
335 : /* The target machine. */
336 :
337 : static const char *spec_machine = DEFAULT_TARGET_MACHINE;
338 : static const char *spec_host_machine = DEFAULT_REAL_TARGET_MACHINE;
339 :
340 : /* List of offload targets. Separated by colon. Empty string for
341 : -foffload=disable. */
342 :
343 : static char *offload_targets = NULL;
344 :
345 : #if OFFLOAD_DEFAULTED
346 : /* Set to true if -foffload has not been used and offload_targets
347 : is set to the configured in default. */
348 : static bool offload_targets_default;
349 : #endif
350 :
351 : /* Nonzero if cross-compiling.
352 : When -b is used, the value comes from the `specs' file. */
353 :
354 : #ifdef CROSS_DIRECTORY_STRUCTURE
355 : static const char *cross_compile = "1";
356 : #else
357 : static const char *cross_compile = "0";
358 : #endif
359 :
360 : /* Greatest exit code of sub-processes that has been encountered up to
361 : now. */
362 : static int greatest_status = 1;
363 :
364 : /* This is the obstack which we use to allocate many strings. */
365 :
366 : static struct obstack obstack;
367 :
368 : /* This is the obstack to build an environment variable to pass to
369 : collect2 that describes all of the relevant switches of what to
370 : pass the compiler in building the list of pointers to constructors
371 : and destructors. */
372 :
373 : static struct obstack collect_obstack;
374 :
375 : /* Forward declaration for prototypes. */
376 : struct path_prefix;
377 : struct prefix_list;
378 :
379 : static void init_spec (void);
380 : static void store_arg (const char *, int, int);
381 : static void insert_wrapper (const char *);
382 : static char *load_specs (const char *);
383 : static void read_specs (const char *, bool, bool);
384 : static void set_spec (const char *, const char *, bool);
385 : static struct compiler *lookup_compiler (const char *, size_t, const char *);
386 : static char *build_search_list (const struct path_prefix *, const char *,
387 : bool, bool);
388 : static void xputenv (const char *);
389 : static void putenv_from_prefixes (const struct path_prefix *, const char *,
390 : bool);
391 : static int access_check (const char *, int);
392 : static char *find_a_file (const struct path_prefix *, const char *, bool);
393 : static char *find_a_program (const char *);
394 : static void add_prefix (struct path_prefix *, const char *, const char *,
395 : int, int, int);
396 : static void add_sysrooted_prefix (struct path_prefix *, const char *,
397 : const char *, int, int, int);
398 : static char *skip_whitespace (char *);
399 : static void delete_if_ordinary (const char *);
400 : static void delete_temp_files (void);
401 : static void delete_failure_queue (void);
402 : static void clear_failure_queue (void);
403 : static int check_live_switch (int, int);
404 : static const char *handle_braces (const char *);
405 : static inline bool input_suffix_matches (const char *, const char *);
406 : static inline bool switch_matches (const char *, const char *, int);
407 : static inline void mark_matching_switches (const char *, const char *, int);
408 : static inline void process_marked_switches (void);
409 : static const char *process_brace_body (const char *, const char *, const char *, int, int);
410 : static const struct spec_function *lookup_spec_function (const char *);
411 : static const char *eval_spec_function (const char *, const char *, const char *);
412 : static const char *handle_spec_function (const char *, bool *, const char *);
413 : static char *save_string (const char *, int);
414 : static void set_collect_gcc_options (void);
415 : static int do_spec_1 (const char *, int, const char *);
416 : static int do_spec_2 (const char *, const char *);
417 : static void do_option_spec (const char *, const char *);
418 : static void do_self_spec (const char *);
419 : static const char *find_file (const char *);
420 : static int is_directory (const char *);
421 : static const char *validate_switches (const char *, bool, bool);
422 : static void validate_all_switches (void);
423 : static inline void validate_switches_from_spec (const char *, bool);
424 : static void give_switch (int, int);
425 : static int default_arg (const char *, int);
426 : static void set_multilib_dir (void);
427 : static void print_multilib_info (void);
428 : static void display_help (void);
429 : static void add_preprocessor_option (const char *, int);
430 : static void add_assembler_option (const char *, int);
431 : static void add_linker_option (const char *, int);
432 : static void process_command (unsigned int, struct cl_decoded_option *);
433 : static int execute (void);
434 : static void alloc_args (void);
435 : static void clear_args (void);
436 : static void fatal_signal (int);
437 : #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
438 : static void init_gcc_specs (struct obstack *, const char *, const char *,
439 : const char *);
440 : #endif
441 : #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
442 : static const char *convert_filename (const char *, int, int);
443 : #endif
444 :
445 : static void try_generate_repro (const char **argv);
446 : static const char *getenv_spec_function (int, const char **);
447 : static const char *if_exists_spec_function (int, const char **);
448 : static const char *if_exists_else_spec_function (int, const char **);
449 : static const char *if_exists_then_else_spec_function (int, const char **);
450 : static const char *sanitize_spec_function (int, const char **);
451 : static const char *replace_outfile_spec_function (int, const char **);
452 : static const char *remove_outfile_spec_function (int, const char **);
453 : static const char *version_compare_spec_function (int, const char **);
454 : static const char *include_spec_function (int, const char **);
455 : static const char *find_file_spec_function (int, const char **);
456 : static const char *find_plugindir_spec_function (int, const char **);
457 : static const char *print_asm_header_spec_function (int, const char **);
458 : static const char *compare_debug_dump_opt_spec_function (int, const char **);
459 : static const char *compare_debug_self_opt_spec_function (int, const char **);
460 : static const char *pass_through_libs_spec_func (int, const char **);
461 : static const char *dumps_spec_func (int, const char **);
462 : static const char *greater_than_spec_func (int, const char **);
463 : static const char *debug_level_greater_than_spec_func (int, const char **);
464 : static const char *dwarf_version_greater_than_spec_func (int, const char **);
465 : static const char *find_fortran_preinclude_file (int, const char **);
466 : static const char *join_spec_func (int, const char **);
467 : static char *convert_white_space (char *);
468 : static char *quote_spec (char *);
469 : static char *quote_spec_arg (char *);
470 : static bool not_actual_file_p (const char *);
471 :
472 :
473 : /* The Specs Language
474 :
475 : Specs are strings containing lines, each of which (if not blank)
476 : is made up of a program name, and arguments separated by spaces.
477 : The program name must be exact and start from root, since no path
478 : is searched and it is unreliable to depend on the current working directory.
479 : Redirection of input or output is not supported; the subprograms must
480 : accept filenames saying what files to read and write.
481 :
482 : In addition, the specs can contain %-sequences to substitute variable text
483 : or for conditional text. Here is a table of all defined %-sequences.
484 : Note that spaces are not generated automatically around the results of
485 : expanding these sequences; therefore, you can concatenate them together
486 : or with constant text in a single argument.
487 :
488 : %% substitute one % into the program name or argument.
489 : %" substitute an empty argument.
490 : %i substitute the name of the input file being processed.
491 : %b substitute the basename for outputs related with the input file
492 : being processed. This is often a substring of the input file name,
493 : up to (and not including) the last period but, unless %w is active,
494 : it is affected by the directory selected by -save-temps=*, by
495 : -dumpdir, and, in case of multiple compilations, even by -dumpbase
496 : and -dumpbase-ext and, in case of linking, by the linker output
497 : name. When %w is active, it derives the main output name only from
498 : the input file base name; when it is not, it names aux/dump output
499 : file.
500 : %B same as %b, but include the input file suffix (text after the last
501 : period).
502 : %gSUFFIX
503 : substitute a file name that has suffix SUFFIX and is chosen
504 : once per compilation, and mark the argument a la %d. To reduce
505 : exposure to denial-of-service attacks, the file name is now
506 : chosen in a way that is hard to predict even when previously
507 : chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
508 : might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
509 : the regexp "[.0-9A-Za-z]*%O"; "%O" is treated exactly as if it
510 : had been pre-processed. Previously, %g was simply substituted
511 : with a file name chosen once per compilation, without regard
512 : to any appended suffix (which was therefore treated just like
513 : ordinary text), making such attacks more likely to succeed.
514 : %|SUFFIX
515 : like %g, but if -pipe is in effect, expands simply to "-".
516 : %mSUFFIX
517 : like %g, but if -pipe is in effect, expands to nothing. (We have both
518 : %| and %m to accommodate differences between system assemblers; see
519 : the AS_NEEDS_DASH_FOR_PIPED_INPUT target macro.)
520 : %uSUFFIX
521 : like %g, but generates a new temporary file name even if %uSUFFIX
522 : was already seen.
523 : %USUFFIX
524 : substitutes the last file name generated with %uSUFFIX, generating a
525 : new one if there is no such last file name. In the absence of any
526 : %uSUFFIX, this is just like %gSUFFIX, except they don't share
527 : the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
528 : would involve the generation of two distinct file names, one
529 : for each `%g.s' and another for each `%U.s'. Previously, %U was
530 : simply substituted with a file name chosen for the previous %u,
531 : without regard to any appended suffix.
532 : %jSUFFIX
533 : substitutes the name of the HOST_BIT_BUCKET, if any, and if it is
534 : writable, and if save-temps is off; otherwise, substitute the name
535 : of a temporary file, just like %u. This temporary file is not
536 : meant for communication between processes, but rather as a junk
537 : disposal mechanism.
538 : %.SUFFIX
539 : substitutes .SUFFIX for the suffixes of a matched switch's args when
540 : it is subsequently output with %*. SUFFIX is terminated by the next
541 : space or %.
542 : %d marks the argument containing or following the %d as a
543 : temporary file name, so that file will be deleted if GCC exits
544 : successfully. Unlike %g, this contributes no text to the argument.
545 : %w marks the argument containing or following the %w as the
546 : "output file" of this compilation. This puts the argument
547 : into the sequence of arguments that %o will substitute later.
548 : %V indicates that this compilation produces no "output file".
549 : %W{...}
550 : like %{...} but marks the last argument supplied within as a file
551 : to be deleted on failure.
552 : %@{...}
553 : like %{...} but puts the result into a FILE and substitutes @FILE
554 : if an @file argument has been supplied.
555 : %o substitutes the names of all the output files, with spaces
556 : automatically placed around them. You should write spaces
557 : around the %o as well or the results are undefined.
558 : %o is for use in the specs for running the linker.
559 : Input files whose names have no recognized suffix are not compiled
560 : at all, but they are included among the output files, so they will
561 : be linked.
562 : %O substitutes the suffix for object files. Note that this is
563 : handled specially when it immediately follows %g, %u, or %U
564 : (with or without a suffix argument) because of the need for
565 : those to form complete file names. The handling is such that
566 : %O is treated exactly as if it had already been substituted,
567 : except that %g, %u, and %U do not currently support additional
568 : SUFFIX characters following %O as they would following, for
569 : example, `.o'.
570 : %I Substitute any of -iprefix (made from GCC_EXEC_PREFIX), -isysroot
571 : (made from TARGET_SYSTEM_ROOT), -isystem (made from COMPILER_PATH
572 : and -B options) and -imultilib as necessary.
573 : %s current argument is the name of a library or startup file of some sort.
574 : Search for that file in a standard list of directories
575 : and substitute the full name found.
576 : %T current argument is the name of a linker script.
577 : Search for that file in the current list of directories to scan for
578 : libraries. If the file is located, insert a --script option into the
579 : command line followed by the full path name found. If the file is
580 : not found then generate an error message.
581 : Note: the current working directory is not searched.
582 : %eSTR Print STR as an error message. STR is terminated by a newline.
583 : Use this when inconsistent options are detected.
584 : %nSTR Print STR as a notice. STR is terminated by a newline.
585 : %x{OPTION} Accumulate an option for %X.
586 : %X Output the accumulated linker options specified by compilations.
587 : %Y Output the accumulated assembler options specified by compilations.
588 : %Z Output the accumulated preprocessor options specified by compilations.
589 : %a process ASM_SPEC as a spec.
590 : This allows config.h to specify part of the spec for running as.
591 : %A process ASM_FINAL_SPEC as a spec. A capital A is actually
592 : used here. This can be used to run a post-processor after the
593 : assembler has done its job.
594 : %D Dump out a -L option for each directory in startfile_prefixes.
595 : If multilib_dir is set, extra entries are generated with it affixed.
596 : %l process LINK_SPEC as a spec.
597 : %L process LIB_SPEC as a spec.
598 : %M Output multilib_os_dir.
599 : %P Output a RUNPATH_OPTION for each directory in startfile_prefixes.
600 : %G process LIBGCC_SPEC as a spec.
601 : %R Output the concatenation of target_system_root and
602 : target_sysroot_suffix.
603 : %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
604 : %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
605 : %C process CPP_SPEC as a spec.
606 : %1 process CC1_SPEC as a spec.
607 : %2 process CC1PLUS_SPEC as a spec.
608 : %* substitute the variable part of a matched option. (See below.)
609 : Note that each comma in the substituted string is replaced by
610 : a single space. A space is appended after the last substitution
611 : unless there is more text in current sequence.
612 : %<S remove all occurrences of -S from the command line.
613 : Note - this command is position dependent. % commands in the
614 : spec string before this one will see -S, % commands in the
615 : spec string after this one will not.
616 : %>S Similar to "%<S", but keep it in the GCC command line.
617 : %<S* remove all occurrences of all switches beginning with -S from the
618 : command line.
619 : %:function(args)
620 : Call the named function FUNCTION, passing it ARGS. ARGS is
621 : first processed as a nested spec string, then split into an
622 : argument vector in the usual fashion. The function returns
623 : a string which is processed as if it had appeared literally
624 : as part of the current spec.
625 : %{S} substitutes the -S switch, if that switch was given to GCC.
626 : If that switch was not specified, this substitutes nothing.
627 : Here S is a metasyntactic variable.
628 : %{S*} substitutes all the switches specified to GCC whose names start
629 : with -S. This is used for -o, -I, etc; switches that take
630 : arguments. GCC considers `-o foo' as being one switch whose
631 : name starts with `o'. %{o*} would substitute this text,
632 : including the space; thus, two arguments would be generated.
633 : %{S*&T*} likewise, but preserve order of S and T options (the order
634 : of S and T in the spec is not significant). Can be any number
635 : of ampersand-separated variables; for each the wild card is
636 : optional. Useful for CPP as %{D*&U*&A*}.
637 :
638 : %{S:X} substitutes X, if the -S switch was given to GCC.
639 : %{!S:X} substitutes X, if the -S switch was NOT given to GCC.
640 : %{S*:X} substitutes X if one or more switches whose names start
641 : with -S was given to GCC. Normally X is substituted only
642 : once, no matter how many such switches appeared. However,
643 : if %* appears somewhere in X, then X will be substituted
644 : once for each matching switch, with the %* replaced by the
645 : part of that switch that matched the '*'. A space will be
646 : appended after the last substitution unless there is more
647 : text in current sequence.
648 : %{.S:X} substitutes X, if processing a file with suffix S.
649 : %{!.S:X} substitutes X, if NOT processing a file with suffix S.
650 : %{,S:X} substitutes X, if processing a file which will use spec S.
651 : %{!,S:X} substitutes X, if NOT processing a file which will use spec S.
652 :
653 : %{S|T:X} substitutes X if either -S or -T was given to GCC. This may be
654 : combined with '!', '.', ',', and '*' as above binding stronger
655 : than the OR.
656 : If %* appears in X, all of the alternatives must be starred, and
657 : only the first matching alternative is substituted.
658 : %{%:function(args):X}
659 : Call function named FUNCTION with args ARGS. If the function
660 : returns non-NULL, then X is substituted, if it returns
661 : NULL, it isn't substituted.
662 : %{S:X; if S was given to GCC, substitutes X;
663 : T:Y; else if T was given to GCC, substitutes Y;
664 : :D} else substitutes D. There can be as many clauses as you need.
665 : This may be combined with '.', '!', ',', '|', and '*' as above.
666 :
667 : %(Spec) processes a specification defined in a specs file as *Spec:
668 :
669 : The switch matching text S in a %{S}, %{S:X}, or similar construct can use
670 : a backslash to ignore the special meaning of the character following it,
671 : thus allowing literal matching of a character that is otherwise specially
672 : treated. For example, %{std=iso9899\:1999:X} substitutes X if the
673 : -std=iso9899:1999 option is given.
674 :
675 : The conditional text X in a %{S:X} or similar construct may contain
676 : other nested % constructs or spaces, or even newlines. They are
677 : processed as usual, as described above. Trailing white space in X is
678 : ignored. White space may also appear anywhere on the left side of the
679 : colon in these constructs, except between . or * and the corresponding
680 : word.
681 :
682 : The -O, -f, -g, -m, and -W switches are handled specifically in these
683 : constructs. If another value of -O or the negated form of a -f, -m, or
684 : -W switch is found later in the command line, the earlier switch
685 : value is ignored, except with {S*} where S is just one letter; this
686 : passes all matching options.
687 :
688 : The character | at the beginning of the predicate text is used to indicate
689 : that a command should be piped to the following command, but only if -pipe
690 : is specified.
691 :
692 : Note that it is built into GCC which switches take arguments and which
693 : do not. You might think it would be useful to generalize this to
694 : allow each compiler's spec to say which switches take arguments. But
695 : this cannot be done in a consistent fashion. GCC cannot even decide
696 : which input files have been specified without knowing which switches
697 : take arguments, and it must know which input files to compile in order
698 : to tell which compilers to run.
699 :
700 : GCC also knows implicitly that arguments starting in `-l' are to be
701 : treated as compiler output files, and passed to the linker in their
702 : proper position among the other output files. */
703 :
704 : /* Define the macros used for specs %a, %l, %L, %S, %C, %1. */
705 :
706 : /* config.h can define ASM_SPEC to provide extra args to the assembler
707 : or extra switch-translations. */
708 : #ifndef ASM_SPEC
709 : #define ASM_SPEC ""
710 : #endif
711 :
712 : /* config.h can define ASM_FINAL_SPEC to run a post processor after
713 : the assembler has run. */
714 : #ifndef ASM_FINAL_SPEC
715 : #define ASM_FINAL_SPEC \
716 : "%{gsplit-dwarf: \n\
717 : objcopy --extract-dwo \
718 : %{c:%{o*:%*}%{!o*:%w%b%O}}%{!c:%U%O} \
719 : %b.dwo \n\
720 : objcopy --strip-dwo \
721 : %{c:%{o*:%*}%{!o*:%w%b%O}}%{!c:%U%O} \
722 : }"
723 : #endif
724 :
725 : /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
726 : or extra switch-translations. */
727 : #ifndef CPP_SPEC
728 : #define CPP_SPEC ""
729 : #endif
730 :
731 : /* libc can define LIBC_CPP_SPEC to provide extra args to the C preprocessor
732 : or extra switch-translations. */
733 :
734 : #ifndef LIBC_CPP_SPEC
735 : #define LIBC_CPP_SPEC ""
736 : #endif
737 :
738 : /* Operating systems can define OS_CC1_SPEC to provide extra args to cc1 and
739 : cc1plus or extra switch-translations. The OS_CC1_SPEC is appended
740 : to CC1_SPEC in the initialization of cc1_spec. */
741 : #ifndef OS_CC1_SPEC
742 : #define OS_CC1_SPEC ""
743 : #endif
744 :
745 : /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
746 : or extra switch-translations. */
747 : #ifndef CC1_SPEC
748 : #define CC1_SPEC ""
749 : #endif
750 :
751 : /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
752 : or extra switch-translations. */
753 : #ifndef CC1PLUS_SPEC
754 : #define CC1PLUS_SPEC ""
755 : #endif
756 :
757 : /* config.h can define LINK_SPEC to provide extra args to the linker
758 : or extra switch-translations. */
759 : #ifndef LINK_SPEC
760 : #define LINK_SPEC ""
761 : #endif
762 :
763 : /* libc can define LIBC_LINK_SPEC to provide extra args to the linker
764 : or extra switch-translations. */
765 : #ifndef LIBC_LINK_SPEC
766 : #define LIBC_LINK_SPEC ""
767 : #endif
768 :
769 : /* config.h can define LIB_SPEC to override the default libraries. */
770 : #ifndef LIB_SPEC
771 : #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
772 : #endif
773 :
774 : /* When using -fsplit-stack we need to wrap pthread_create, in order
775 : to initialize the stack guard. We always use wrapping, rather than
776 : shared library ordering, and we keep the wrapper function in
777 : libgcc. This is not yet a real spec, though it could become one;
778 : it is currently just stuffed into LINK_SPEC. FIXME: This wrapping
779 : only works with GNU ld and gold. */
780 : #ifdef HAVE_GOLD_NON_DEFAULT_SPLIT_STACK
781 : #define STACK_SPLIT_SPEC " %{fsplit-stack: -fuse-ld=gold --wrap=pthread_create}"
782 : #else
783 : #define STACK_SPLIT_SPEC " %{fsplit-stack: --wrap=pthread_create}"
784 : #endif
785 :
786 : #ifndef LIBASAN_SPEC
787 : #define STATIC_LIBASAN_LIBS \
788 : " %{static-libasan|static:%:include(libsanitizer.spec)%(link_libasan)}"
789 : #ifdef LIBASAN_EARLY_SPEC
790 : #define LIBASAN_SPEC STATIC_LIBASAN_LIBS
791 : #elif defined(HAVE_LD_STATIC_DYNAMIC)
792 : #define LIBASAN_SPEC "%{static-libasan:" LD_STATIC_OPTION \
793 : "} -lasan %{static-libasan:" LD_DYNAMIC_OPTION "}" \
794 : STATIC_LIBASAN_LIBS
795 : #else
796 : #define LIBASAN_SPEC "-lasan" STATIC_LIBASAN_LIBS
797 : #endif
798 : #endif
799 :
800 : #ifndef LIBASAN_EARLY_SPEC
801 : #define LIBASAN_EARLY_SPEC ""
802 : #endif
803 :
804 : #ifndef LIBHWASAN_SPEC
805 : #define STATIC_LIBHWASAN_LIBS \
806 : " %{static-libhwasan|static:%:include(libsanitizer.spec)%(link_libhwasan)}"
807 : #ifdef LIBHWASAN_EARLY_SPEC
808 : #define LIBHWASAN_SPEC STATIC_LIBHWASAN_LIBS
809 : #elif defined(HAVE_LD_STATIC_DYNAMIC)
810 : #define LIBHWASAN_SPEC "%{static-libhwasan:" LD_STATIC_OPTION \
811 : "} -lhwasan %{static-libhwasan:" LD_DYNAMIC_OPTION "}" \
812 : STATIC_LIBHWASAN_LIBS
813 : #else
814 : #define LIBHWASAN_SPEC "-lhwasan" STATIC_LIBHWASAN_LIBS
815 : #endif
816 : #endif
817 :
818 : #ifndef LIBHWASAN_EARLY_SPEC
819 : #define LIBHWASAN_EARLY_SPEC ""
820 : #endif
821 :
822 : #ifndef LIBTSAN_SPEC
823 : #define STATIC_LIBTSAN_LIBS \
824 : " %{static-libtsan|static:%:include(libsanitizer.spec)%(link_libtsan)}"
825 : #ifdef LIBTSAN_EARLY_SPEC
826 : #define LIBTSAN_SPEC STATIC_LIBTSAN_LIBS
827 : #elif defined(HAVE_LD_STATIC_DYNAMIC)
828 : #define LIBTSAN_SPEC "%{static-libtsan:" LD_STATIC_OPTION \
829 : "} -ltsan %{static-libtsan:" LD_DYNAMIC_OPTION "}" \
830 : STATIC_LIBTSAN_LIBS
831 : #else
832 : #define LIBTSAN_SPEC "-ltsan" STATIC_LIBTSAN_LIBS
833 : #endif
834 : #endif
835 :
836 : #ifndef LIBTSAN_EARLY_SPEC
837 : #define LIBTSAN_EARLY_SPEC ""
838 : #endif
839 :
840 : #ifndef LIBLSAN_SPEC
841 : #define STATIC_LIBLSAN_LIBS \
842 : " %{static-liblsan|static:%:include(libsanitizer.spec)%(link_liblsan)}"
843 : #ifdef LIBLSAN_EARLY_SPEC
844 : #define LIBLSAN_SPEC STATIC_LIBLSAN_LIBS
845 : #elif defined(HAVE_LD_STATIC_DYNAMIC)
846 : #define LIBLSAN_SPEC "%{static-liblsan:" LD_STATIC_OPTION \
847 : "} -llsan %{static-liblsan:" LD_DYNAMIC_OPTION "}" \
848 : STATIC_LIBLSAN_LIBS
849 : #else
850 : #define LIBLSAN_SPEC "-llsan" STATIC_LIBLSAN_LIBS
851 : #endif
852 : #endif
853 :
854 : #ifndef LIBLSAN_EARLY_SPEC
855 : #define LIBLSAN_EARLY_SPEC ""
856 : #endif
857 :
858 : #ifndef LIBUBSAN_SPEC
859 : #define STATIC_LIBUBSAN_LIBS \
860 : " %{static-libubsan|static:%:include(libsanitizer.spec)%(link_libubsan)}"
861 : #ifdef HAVE_LD_STATIC_DYNAMIC
862 : #define LIBUBSAN_SPEC "%{static-libubsan:" LD_STATIC_OPTION \
863 : "} -lubsan %{static-libubsan:" LD_DYNAMIC_OPTION "}" \
864 : STATIC_LIBUBSAN_LIBS
865 : #else
866 : #define LIBUBSAN_SPEC "-lubsan" STATIC_LIBUBSAN_LIBS
867 : #endif
868 : #endif
869 :
870 : /* Linker options for compressed debug sections. */
871 : #if HAVE_LD_COMPRESS_DEBUG == 0
872 : /* No linker support. */
873 : #define LINK_COMPRESS_DEBUG_SPEC \
874 : " %{gz*:%e-gz is not supported in this configuration} "
875 : #elif HAVE_LD_COMPRESS_DEBUG == 1
876 : /* ELF gABI style. */
877 : #define LINK_COMPRESS_DEBUG_SPEC \
878 : " %{gz|gz=zlib:" LD_COMPRESS_DEBUG_OPTION "=zlib}" \
879 : " %{gz=none:" LD_COMPRESS_DEBUG_OPTION "=none}" \
880 : " %{gz=zstd:%e-gz=zstd is not supported in this configuration} " \
881 : " %{gz=zlib-gnu:}" /* Ignore silently zlib-gnu option value. */
882 : #elif HAVE_LD_COMPRESS_DEBUG == 2
883 : /* ELF gABI style and ZSTD. */
884 : #define LINK_COMPRESS_DEBUG_SPEC \
885 : " %{gz|gz=zlib:" LD_COMPRESS_DEBUG_OPTION "=zlib}" \
886 : " %{gz=none:" LD_COMPRESS_DEBUG_OPTION "=none}" \
887 : " %{gz=zstd:" LD_COMPRESS_DEBUG_OPTION "=zstd}" \
888 : " %{gz=zlib-gnu:}" /* Ignore silently zlib-gnu option value. */
889 : #else
890 : #error Unknown value for HAVE_LD_COMPRESS_DEBUG.
891 : #endif
892 :
893 : /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
894 : included. */
895 : #ifndef LIBGCC_SPEC
896 : #if defined(REAL_LIBGCC_SPEC)
897 : #define LIBGCC_SPEC REAL_LIBGCC_SPEC
898 : #elif defined(LINK_LIBGCC_SPECIAL_1)
899 : /* Have gcc do the search for libgcc.a. */
900 : #define LIBGCC_SPEC "libgcc.a%s"
901 : #else
902 : #define LIBGCC_SPEC "-lgcc"
903 : #endif
904 : #endif
905 :
906 : /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
907 : #ifndef STARTFILE_SPEC
908 : #define STARTFILE_SPEC \
909 : "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
910 : #endif
911 :
912 : /* config.h can define ENDFILE_SPEC to override the default crtn files. */
913 : #ifndef ENDFILE_SPEC
914 : #define ENDFILE_SPEC ""
915 : #endif
916 :
917 : #ifndef LINKER_NAME
918 : #define LINKER_NAME "collect2"
919 : #endif
920 :
921 : #ifdef HAVE_AS_DEBUG_PREFIX_MAP
922 : #define ASM_MAP " %{ffile-prefix-map=*:--debug-prefix-map %*} %{fdebug-prefix-map=*:--debug-prefix-map %*}"
923 : #else
924 : #define ASM_MAP ""
925 : #endif
926 :
927 : /* Assembler options for compressed debug sections. */
928 : #if HAVE_LD_COMPRESS_DEBUG == 0
929 : /* Reject if the linker cannot write compressed debug sections. */
930 : #define ASM_COMPRESS_DEBUG_SPEC \
931 : " %{gz*:%e-gz is not supported in this configuration} "
932 : #else /* HAVE_LD_COMPRESS_DEBUG >= 1 */
933 : #if HAVE_AS_COMPRESS_DEBUG == 0
934 : /* No assembler support. Ignore silently. */
935 : #define ASM_COMPRESS_DEBUG_SPEC \
936 : " %{gz*:} "
937 : #elif HAVE_AS_COMPRESS_DEBUG == 1
938 : /* ELF gABI style. */
939 : #define ASM_COMPRESS_DEBUG_SPEC \
940 : " %{gz|gz=zlib:" AS_COMPRESS_DEBUG_OPTION "=zlib}" \
941 : " %{gz=none:" AS_COMPRESS_DEBUG_OPTION "=none}" \
942 : " %{gz=zlib-gnu:}" /* Ignore silently zlib-gnu option value. */
943 : #elif HAVE_AS_COMPRESS_DEBUG == 2
944 : /* ELF gABI style and ZSTD. */
945 : #define ASM_COMPRESS_DEBUG_SPEC \
946 : " %{gz|gz=zlib:" AS_COMPRESS_DEBUG_OPTION "=zlib}" \
947 : " %{gz=none:" AS_COMPRESS_DEBUG_OPTION "=none}" \
948 : " %{gz=zstd:" AS_COMPRESS_DEBUG_OPTION "=zstd}" \
949 : " %{gz=zlib-gnu:}" /* Ignore silently zlib-gnu option value. */
950 : #else
951 : #error Unknown value for HAVE_AS_COMPRESS_DEBUG.
952 : #endif
953 : #endif /* HAVE_LD_COMPRESS_DEBUG >= 1 */
954 :
955 : /* Define ASM_DEBUG_SPEC to be a spec suitable for translating '-g'
956 : to the assembler, when compiling assembly sources only. */
957 : #ifndef ASM_DEBUG_SPEC
958 : # if defined(HAVE_AS_GDWARF_5_DEBUG_FLAG) && defined(HAVE_AS_WORKING_DWARF_N_FLAG)
959 : /* If --gdwarf-N is supported and as can handle even compiler generated
960 : .debug_line with it, supply --gdwarf-N in ASM_DEBUG_OPTION_SPEC rather
961 : than in ASM_DEBUG_SPEC, so that it applies to both .s and .c etc.
962 : compilations. */
963 : # define ASM_DEBUG_DWARF_OPTION ""
964 : # elif defined(HAVE_AS_GDWARF_5_DEBUG_FLAG) && !defined(HAVE_LD_BROKEN_PE_DWARF5)
965 : # define ASM_DEBUG_DWARF_OPTION "%{%:dwarf-version-gt(4):--gdwarf-5;" \
966 : "%:dwarf-version-gt(3):--gdwarf-4;" \
967 : "%:dwarf-version-gt(2):--gdwarf-3;" \
968 : ":--gdwarf2}"
969 : # else
970 : # define ASM_DEBUG_DWARF_OPTION "--gdwarf2"
971 : # endif
972 : # if defined(DWARF2_DEBUGGING_INFO) && defined(HAVE_AS_GDWARF2_DEBUG_FLAG)
973 : # define ASM_DEBUG_SPEC "%{g*:%{%:debug-level-gt(0):" \
974 : ASM_DEBUG_DWARF_OPTION "}}" ASM_MAP
975 : # endif
976 : # endif
977 : #ifndef ASM_DEBUG_SPEC
978 : # define ASM_DEBUG_SPEC ""
979 : #endif
980 :
981 : /* Define ASM_DEBUG_OPTION_SPEC to be a spec suitable for translating '-g'
982 : to the assembler when compiling all sources. */
983 : #ifndef ASM_DEBUG_OPTION_SPEC
984 : # if defined(HAVE_AS_GDWARF_5_DEBUG_FLAG) && defined(HAVE_AS_WORKING_DWARF_N_FLAG)
985 : # define ASM_DEBUG_OPTION_DWARF_OPT \
986 : "%{%:dwarf-version-gt(4):--gdwarf-5 ;" \
987 : "%:dwarf-version-gt(3):--gdwarf-4 ;" \
988 : "%:dwarf-version-gt(2):--gdwarf-3 ;" \
989 : ":--gdwarf2 }"
990 : # if defined(DWARF2_DEBUGGING_INFO)
991 : # define ASM_DEBUG_OPTION_SPEC "%{g*:%{%:debug-level-gt(0):" \
992 : ASM_DEBUG_OPTION_DWARF_OPT "}}"
993 : # endif
994 : # endif
995 : #endif
996 : #ifndef ASM_DEBUG_OPTION_SPEC
997 : # define ASM_DEBUG_OPTION_SPEC ""
998 : #endif
999 :
1000 : /* Here is the spec for running the linker, after compiling all files. */
1001 :
1002 : #if defined(TARGET_PROVIDES_LIBATOMIC) && defined(USE_LD_AS_NEEDED)
1003 : #ifdef USE_LD_AS_NEEDED_LDSCRIPT
1004 : #define LINK_LIBATOMIC_SPEC "%{!fno-link-libatomic:-latomic_asneeded} "
1005 : #else
1006 : #define LINK_LIBATOMIC_SPEC "%{!fno-link-libatomic:" LD_AS_NEEDED_OPTION \
1007 : " -latomic " LD_NO_AS_NEEDED_OPTION "} "
1008 : #endif
1009 : #else
1010 : #define LINK_LIBATOMIC_SPEC ""
1011 : #endif
1012 :
1013 : /* This is overridable by the target in case they need to specify the
1014 : -lgcc and -lc order specially, yet not require them to override all
1015 : of LINK_COMMAND_SPEC. */
1016 : #ifndef LINK_GCC_C_SEQUENCE_SPEC
1017 : #define LINK_GCC_C_SEQUENCE_SPEC "%G %{!nolibc:%L %G}"
1018 : #endif
1019 :
1020 : #ifndef LINK_SSP_SPEC
1021 : #ifdef TARGET_LIBC_PROVIDES_SSP
1022 : #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
1023 : "|fstack-protector-strong|fstack-protector-explicit:}"
1024 : #else
1025 : #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
1026 : "|fstack-protector-strong|fstack-protector-explicit" \
1027 : ":-lssp_nonshared -lssp}"
1028 : #endif
1029 : #endif
1030 :
1031 : #ifdef ENABLE_DEFAULT_PIE
1032 : #define PIE_SPEC "!no-pie"
1033 : #define NO_FPIE1_SPEC "fno-pie"
1034 : #define FPIE1_SPEC NO_FPIE1_SPEC ":;"
1035 : #define NO_FPIE2_SPEC "fno-PIE"
1036 : #define FPIE2_SPEC NO_FPIE2_SPEC ":;"
1037 : #define NO_FPIE_SPEC NO_FPIE1_SPEC "|" NO_FPIE2_SPEC
1038 : #define FPIE_SPEC NO_FPIE_SPEC ":;"
1039 : #define NO_FPIC1_SPEC "fno-pic"
1040 : #define FPIC1_SPEC NO_FPIC1_SPEC ":;"
1041 : #define NO_FPIC2_SPEC "fno-PIC"
1042 : #define FPIC2_SPEC NO_FPIC2_SPEC ":;"
1043 : #define NO_FPIC_SPEC NO_FPIC1_SPEC "|" NO_FPIC2_SPEC
1044 : #define FPIC_SPEC NO_FPIC_SPEC ":;"
1045 : #define NO_FPIE1_AND_FPIC1_SPEC NO_FPIE1_SPEC "|" NO_FPIC1_SPEC
1046 : #define FPIE1_OR_FPIC1_SPEC NO_FPIE1_AND_FPIC1_SPEC ":;"
1047 : #define NO_FPIE2_AND_FPIC2_SPEC NO_FPIE2_SPEC "|" NO_FPIC2_SPEC
1048 : #define FPIE2_OR_FPIC2_SPEC NO_FPIE2_AND_FPIC2_SPEC ":;"
1049 : #define NO_FPIE_AND_FPIC_SPEC NO_FPIE_SPEC "|" NO_FPIC_SPEC
1050 : #define FPIE_OR_FPIC_SPEC NO_FPIE_AND_FPIC_SPEC ":;"
1051 : #else
1052 : #define PIE_SPEC "pie"
1053 : #define FPIE1_SPEC "fpie"
1054 : #define NO_FPIE1_SPEC FPIE1_SPEC ":;"
1055 : #define FPIE2_SPEC "fPIE"
1056 : #define NO_FPIE2_SPEC FPIE2_SPEC ":;"
1057 : #define FPIE_SPEC FPIE1_SPEC "|" FPIE2_SPEC
1058 : #define NO_FPIE_SPEC FPIE_SPEC ":;"
1059 : #define FPIC1_SPEC "fpic"
1060 : #define NO_FPIC1_SPEC FPIC1_SPEC ":;"
1061 : #define FPIC2_SPEC "fPIC"
1062 : #define NO_FPIC2_SPEC FPIC2_SPEC ":;"
1063 : #define FPIC_SPEC FPIC1_SPEC "|" FPIC2_SPEC
1064 : #define NO_FPIC_SPEC FPIC_SPEC ":;"
1065 : #define FPIE1_OR_FPIC1_SPEC FPIE1_SPEC "|" FPIC1_SPEC
1066 : #define NO_FPIE1_AND_FPIC1_SPEC FPIE1_OR_FPIC1_SPEC ":;"
1067 : #define FPIE2_OR_FPIC2_SPEC FPIE2_SPEC "|" FPIC2_SPEC
1068 : #define NO_FPIE2_AND_FPIC2_SPEC FPIE1_OR_FPIC2_SPEC ":;"
1069 : #define FPIE_OR_FPIC_SPEC FPIE_SPEC "|" FPIC_SPEC
1070 : #define NO_FPIE_AND_FPIC_SPEC FPIE_OR_FPIC_SPEC ":;"
1071 : #endif
1072 :
1073 : #ifndef LINK_PIE_SPEC
1074 : #ifdef HAVE_LD_PIE
1075 : #ifndef LD_PIE_SPEC
1076 : #define LD_PIE_SPEC "-pie"
1077 : #endif
1078 : #else
1079 : #define LD_PIE_SPEC ""
1080 : #endif
1081 : #define LINK_PIE_SPEC "%{static|shared|r:;" PIE_SPEC ":" LD_PIE_SPEC "} "
1082 : #endif
1083 :
1084 : #ifndef LINK_BUILDID_SPEC
1085 : # if defined(HAVE_LD_BUILDID) && defined(ENABLE_LD_BUILDID)
1086 : # define LINK_BUILDID_SPEC "%{!r:--build-id} "
1087 : # endif
1088 : #endif
1089 :
1090 : #ifndef LTO_PLUGIN_SPEC
1091 : #define LTO_PLUGIN_SPEC ""
1092 : #endif
1093 :
1094 : /* Conditional to test whether the LTO plugin is used or not.
1095 : FIXME: For slim LTO we will need to enable plugin unconditionally. This
1096 : still cause problems with PLUGIN_LD != LD and when plugin is built but
1097 : not usable. For GCC 4.6 we don't support slim LTO and thus we can enable
1098 : plugin only when LTO is enabled. We still honor explicit
1099 : -fuse-linker-plugin if the linker used understands -plugin. */
1100 :
1101 : /* The linker has some plugin support. */
1102 : #if HAVE_LTO_PLUGIN > 0
1103 : /* The linker used has full plugin support, use LTO plugin by default. */
1104 : #if HAVE_LTO_PLUGIN == 2
1105 : #define PLUGIN_COND "!fno-use-linker-plugin:%{!fno-lto"
1106 : #define PLUGIN_COND_CLOSE "}"
1107 : #else
1108 : /* The linker used has limited plugin support, use LTO plugin with explicit
1109 : -fuse-linker-plugin. */
1110 : #define PLUGIN_COND "fuse-linker-plugin"
1111 : #define PLUGIN_COND_CLOSE ""
1112 : #endif
1113 : #define LINK_PLUGIN_SPEC \
1114 : "%{" PLUGIN_COND": \
1115 : -plugin %(linker_plugin_file) \
1116 : -plugin-opt=%(lto_wrapper) \
1117 : -plugin-opt=-fresolution=%u.res \
1118 : " LTO_PLUGIN_SPEC "\
1119 : %{flinker-output=*:-plugin-opt=-linker-output-known} \
1120 : %{!nostdlib:%{!nodefaultlibs:%:pass-through-libs(%(link_gcc_c_sequence))}} \
1121 : }" PLUGIN_COND_CLOSE
1122 : #else
1123 : /* The linker used doesn't support -plugin, reject -fuse-linker-plugin. */
1124 : #define LINK_PLUGIN_SPEC "%{fuse-linker-plugin:\
1125 : %e-fuse-linker-plugin is not supported in this configuration}"
1126 : #endif
1127 :
1128 : /* Linker command line options for -fsanitize= early on the command line. */
1129 : #ifndef SANITIZER_EARLY_SPEC
1130 : #define SANITIZER_EARLY_SPEC "\
1131 : %{!nostdlib:%{!r:%{!nodefaultlibs:%{%:sanitize(address):" LIBASAN_EARLY_SPEC "} \
1132 : %{%:sanitize(hwaddress):" LIBHWASAN_EARLY_SPEC "} \
1133 : %{%:sanitize(thread):" LIBTSAN_EARLY_SPEC "} \
1134 : %{%:sanitize(leak):" LIBLSAN_EARLY_SPEC "}}}}"
1135 : #endif
1136 :
1137 : /* Linker command line options for -fsanitize= late on the command line. */
1138 : #ifndef SANITIZER_SPEC
1139 : #define SANITIZER_SPEC "\
1140 : %{!nostdlib:%{!r:%{!nodefaultlibs:%{%:sanitize(address):" LIBASAN_SPEC "\
1141 : %{static:%ecannot specify -static with -fsanitize=address}}\
1142 : %{%:sanitize(hwaddress):" LIBHWASAN_SPEC "\
1143 : %{static:%ecannot specify -static with -fsanitize=hwaddress}}\
1144 : %{%:sanitize(thread):" LIBTSAN_SPEC "\
1145 : %{static:%ecannot specify -static with -fsanitize=thread}}\
1146 : %{%:sanitize(undefined):" LIBUBSAN_SPEC "}\
1147 : %{%:sanitize(leak):" LIBLSAN_SPEC "}}}}"
1148 : #endif
1149 :
1150 : #ifndef POST_LINK_SPEC
1151 : #define POST_LINK_SPEC ""
1152 : #endif
1153 :
1154 : /* This is the spec to use, once the code for creating the vtable
1155 : verification runtime library, libvtv.so, has been created. Currently
1156 : the vtable verification runtime functions are in libstdc++, so we use
1157 : the spec just below this one. */
1158 : #ifndef VTABLE_VERIFICATION_SPEC
1159 : #if ENABLE_VTABLE_VERIFY
1160 : #define VTABLE_VERIFICATION_SPEC "\
1161 : %{!nostdlib:%{!r:%{fvtable-verify=std: -lvtv -u_vtable_map_vars_start -u_vtable_map_vars_end}\
1162 : %{fvtable-verify=preinit: -lvtv -u_vtable_map_vars_start -u_vtable_map_vars_end}}}"
1163 : #else
1164 : #define VTABLE_VERIFICATION_SPEC "\
1165 : %{fvtable-verify=none:} \
1166 : %{fvtable-verify=std: \
1167 : %e-fvtable-verify=std is not supported in this configuration} \
1168 : %{fvtable-verify=preinit: \
1169 : %e-fvtable-verify=preinit is not supported in this configuration}"
1170 : #endif
1171 : #endif
1172 :
1173 : /* -u* was put back because both BSD and SysV seem to support it. */
1174 : /* %{static|no-pie|static-pie:} simply prevents an error message:
1175 : 1. If the target machine doesn't handle -static.
1176 : 2. If PIE isn't enabled by default.
1177 : 3. If the target machine doesn't handle -static-pie.
1178 : */
1179 : /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
1180 : scripts which exist in user specified directories, or in standard
1181 : directories. */
1182 : /* We pass any -flto flags on to the linker, which is expected
1183 : to understand them. In practice, this means it had better be collect2. */
1184 : /* %{e*} includes -export-dynamic; see comment in common.opt. */
1185 : #ifndef LINK_COMMAND_SPEC
1186 : #define LINK_COMMAND_SPEC "\
1187 : %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
1188 : %(linker) " \
1189 : LINK_PLUGIN_SPEC \
1190 : "%{flto|flto=*:%<fcompare-debug*} \
1191 : %{flto} %{fno-lto} %{flto=*} %l " LINK_PIE_SPEC \
1192 : "%{fuse-ld=*:-fuse-ld=%*} " LINK_COMPRESS_DEBUG_SPEC \
1193 : "%X %{o*} %{e*} %{N} %{n} %{r}\
1194 : %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!r:%{!nostartfiles:%S}}} \
1195 : %{static|no-pie|static-pie:} %@{L*} %(link_libgcc) " \
1196 : VTABLE_VERIFICATION_SPEC " " SANITIZER_EARLY_SPEC " %o "" \
1197 : %{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1):\
1198 : %:include(libgomp.spec)%(link_gomp)}\
1199 : %{fgnu-tm:%:include(libitm.spec)%(link_itm)}\
1200 : " STACK_SPLIT_SPEC "\
1201 : %{fprofile-arcs|fcondition-coverage|fpath-coverage|fprofile-generate*|coverage:-lgcov} " SANITIZER_SPEC " \
1202 : %{!nostdlib:%{!r:%{!nodefaultlibs:%(link_ssp) %(link_gcc_c_sequence)}}}\
1203 : %{!nostdlib:%{!r:%{!nostartfiles:%E}}} %{T*} \n%(post_link) }}}}}}"
1204 : #endif
1205 :
1206 : #ifndef LINK_LIBGCC_SPEC
1207 : /* Generate -L options for startfile prefix list. */
1208 : # define LINK_LIBGCC_SPEC "%D"
1209 : #endif
1210 :
1211 : #ifndef STARTFILE_PREFIX_SPEC
1212 : # define STARTFILE_PREFIX_SPEC ""
1213 : #endif
1214 :
1215 : #ifndef SYSROOT_SPEC
1216 : # define SYSROOT_SPEC "--sysroot=%R"
1217 : #endif
1218 :
1219 : #ifndef SYSROOT_SUFFIX_SPEC
1220 : # define SYSROOT_SUFFIX_SPEC ""
1221 : #endif
1222 :
1223 : #ifndef SYSROOT_HEADERS_SUFFIX_SPEC
1224 : # define SYSROOT_HEADERS_SUFFIX_SPEC ""
1225 : #endif
1226 :
1227 : #ifndef RUNPATH_OPTION
1228 : # define RUNPATH_OPTION "-rpath"
1229 : #endif
1230 :
1231 : static const char *asm_debug = ASM_DEBUG_SPEC;
1232 : static const char *asm_debug_option = ASM_DEBUG_OPTION_SPEC;
1233 : static const char *cpp_spec = CPP_SPEC LIBC_CPP_SPEC;
1234 : static const char *cc1_spec = CC1_SPEC OS_CC1_SPEC;
1235 : static const char *cc1plus_spec = CC1PLUS_SPEC;
1236 : static const char *link_gcc_c_sequence_spec = LINK_GCC_C_SEQUENCE_SPEC;
1237 : static const char *link_ssp_spec = LINK_SSP_SPEC;
1238 : static const char *asm_spec = ASM_SPEC;
1239 : static const char *asm_final_spec = ASM_FINAL_SPEC;
1240 : static const char *link_spec = LINK_SPEC LIBC_LINK_SPEC;
1241 : static const char *lib_spec = LIB_SPEC;
1242 : static const char *link_gomp_spec = "";
1243 : static const char *libgcc_spec = LIBGCC_SPEC;
1244 : static const char *endfile_spec = ENDFILE_SPEC;
1245 : static const char *startfile_spec = STARTFILE_SPEC;
1246 : static const char *linker_name_spec = LINKER_NAME;
1247 : static const char *linker_plugin_file_spec = "";
1248 : static const char *lto_wrapper_spec = "";
1249 : static const char *lto_gcc_spec = "";
1250 : static const char *post_link_spec = POST_LINK_SPEC;
1251 : static const char *link_command_spec = LINK_COMMAND_SPEC;
1252 : static const char *link_libgcc_spec = LINK_LIBGCC_SPEC;
1253 : static const char *startfile_prefix_spec = STARTFILE_PREFIX_SPEC;
1254 : static const char *sysroot_spec = SYSROOT_SPEC;
1255 : static const char *sysroot_suffix_spec = SYSROOT_SUFFIX_SPEC;
1256 : static const char *sysroot_hdrs_suffix_spec = SYSROOT_HEADERS_SUFFIX_SPEC;
1257 : static const char *self_spec = "";
1258 :
1259 : /* Standard options to cpp, cc1, and as, to reduce duplication in specs.
1260 : There should be no need to override these in target dependent files,
1261 : but we need to copy them to the specs file so that newer versions
1262 : of the GCC driver can correctly drive older tool chains with the
1263 : appropriate -B options. */
1264 :
1265 : /* When cpplib handles traditional preprocessing, get rid of this, and
1266 : call cc1 (or cc1obj in objc/lang-specs.h) from the main specs so
1267 : that we default the front end language better. */
1268 : static const char *trad_capable_cpp =
1269 : "cc1 -E %{traditional|traditional-cpp:-traditional-cpp}";
1270 :
1271 : /* We don't wrap .d files in %W{} since a missing .d file, and
1272 : therefore no dependency entry, confuses make into thinking a .o
1273 : file that happens to exist is up-to-date. */
1274 : static const char *cpp_unique_options =
1275 : "%{!Q:-quiet} %{nostdinc*} %{C} %{CC} %{v} %@{I*&F*} %{P} %I\
1276 : %{MD:-MD %{!o:%b.d}%{o*:%.d%*}}\
1277 : %{MMD:-MMD %{!o:%b.d}%{o*:%.d%*}}\
1278 : %{M} %{MM} %{MF*} %{MG} %{MP} %{MQ*} %{MT*}\
1279 : %{Mmodules} %{Mno-modules}\
1280 : %{!E:%{!M:%{!MM:%{!MT:%{!MQ:%{MD|MMD:%{o*:-MQ %*}}}}}}}\
1281 : %{remap} %{%:debug-level-gt(2):-dD}\
1282 : %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
1283 : %{H} %C %{D*&U*&A*} %{i*} %Z %i\
1284 : %{E|M|MM:%W{o*}} %{-embed*}\
1285 : %{fdeps-format=*:%{!fdeps-file=*:-fdeps-file=%:join(%{!o:%b.ddi}%{o*:%.ddi%*})}}\
1286 : %{fdeps-format=*:%{!fdeps-target=*:-fdeps-target=%:join(%{!o:%b.o}%{o*:%.o%*})}}";
1287 :
1288 : /* This contains cpp options which are common with cc1_options and are passed
1289 : only when preprocessing only to avoid duplication. We pass the cc1 spec
1290 : options to the preprocessor so that it the cc1 spec may manipulate
1291 : options used to set target flags. Those special target flags settings may
1292 : in turn cause preprocessor symbols to be defined specially. */
1293 : static const char *cpp_options =
1294 : "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
1295 : %{f*} %{g*:%{%:debug-level-gt(0):%{g*}\
1296 : %{!fno-working-directory:-fworking-directory}}} %{O*}\
1297 : %{undef} %{save-temps*:-fpch-preprocess}";
1298 :
1299 : /* Pass -d* flags, possibly modifying -dumpdir, -dumpbase et al.
1300 :
1301 : Make it easy for a language to override the argument for the
1302 : %:dumps specs function call. */
1303 : #define DUMPS_OPTIONS(EXTS) \
1304 : "%<dumpdir %<dumpbase %<dumpbase-ext %{d*} %:dumps(" EXTS ")"
1305 :
1306 : /* This contains cpp options which are not passed when the preprocessor
1307 : output will be used by another program. */
1308 : static const char *cpp_debug_options = DUMPS_OPTIONS ("");
1309 :
1310 : /* NB: This is shared amongst all front-ends, except for Ada. */
1311 : static const char *cc1_options =
1312 : "%{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
1313 : %{!iplugindir*:%{fplugin*:%:find-plugindir()}}\
1314 : %1 %{!Q:-quiet} %(cpp_debug_options) %{m*} %{aux-info*}\
1315 : %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs}\
1316 : %{v:-version} %{pg:-p} %{p} %{f*} %{undef}\
1317 : %{Qn:-fno-ident} %{Qy:} %{-help:--help}\
1318 : %{-target-help:--target-help}\
1319 : %{-version:--version}\
1320 : %{-help=*:--help=%*}\
1321 : %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %w%b.s}}}\
1322 : %{fsyntax-only:-o %j} %{-param*}\
1323 : %{coverage:-fprofile-arcs -ftest-coverage}\
1324 : %{fprofile-arcs|fcondition-coverage|fpath-coverage|fprofile-generate*|coverage:\
1325 : %{!fprofile-update=single:\
1326 : %{pthread:-fprofile-update=prefer-atomic}}}";
1327 :
1328 : static const char *asm_options =
1329 : "%{-target-help:%:print-asm-header()} "
1330 : #if HAVE_GNU_AS
1331 : /* If GNU AS is used, then convert -w (no warnings), -I, and -v
1332 : to the assembler equivalents. */
1333 : "%{v} %{w:-W} %{I*} "
1334 : #endif
1335 : "%(asm_debug_option)"
1336 : ASM_COMPRESS_DEBUG_SPEC
1337 : "%a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}";
1338 :
1339 : static const char *invoke_as =
1340 : #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1341 : "%{!fwpa*:\
1342 : %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
1343 : %{!S:-o %|.s |\n as %(asm_options) %|.s %A }\
1344 : }";
1345 : #else
1346 : "%{!fwpa*:\
1347 : %{fcompare-debug=*|fdump-final-insns=*:%:compare-debug-dump-opt()}\
1348 : %{!S:-o %|.s |\n as %(asm_options) %m.s %A }\
1349 : }";
1350 : #endif
1351 :
1352 : /* Some compilers have limits on line lengths, and the multilib_select
1353 : and/or multilib_matches strings can be very long, so we build them at
1354 : run time. */
1355 : static struct obstack multilib_obstack;
1356 : static const char *multilib_select;
1357 : static const char *multilib_matches;
1358 : static const char *multilib_defaults;
1359 : static const char *multilib_exclusions;
1360 : static const char *multilib_reuse;
1361 :
1362 : /* Check whether a particular argument is a default argument. */
1363 :
1364 : #ifndef MULTILIB_DEFAULTS
1365 : #define MULTILIB_DEFAULTS { "" }
1366 : #endif
1367 :
1368 : static const char *const multilib_defaults_raw[] = MULTILIB_DEFAULTS;
1369 :
1370 : #ifndef DRIVER_SELF_SPECS
1371 : #define DRIVER_SELF_SPECS ""
1372 : #endif
1373 :
1374 : /* Linking to libgomp implies pthreads. This is particularly important
1375 : for targets that use different start files and suchlike. */
1376 : #ifndef GOMP_SELF_SPECS
1377 : #define GOMP_SELF_SPECS \
1378 : "%{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1): " \
1379 : "-pthread}"
1380 : #endif
1381 :
1382 : /* Likewise for -fgnu-tm. */
1383 : #ifndef GTM_SELF_SPECS
1384 : #define GTM_SELF_SPECS "%{fgnu-tm: -pthread}"
1385 : #endif
1386 :
1387 : static const char *const driver_self_specs[] = {
1388 : "%{fdump-final-insns:-fdump-final-insns=.} %<fdump-final-insns",
1389 : DRIVER_SELF_SPECS, CONFIGURE_SPECS, GOMP_SELF_SPECS, GTM_SELF_SPECS,
1390 : /* This discards -fmultiflags at the end of self specs processing in the
1391 : driver, so that it is effectively Ignored, without actually marking it as
1392 : Ignored, which would get it discarded before self specs could remap it. */
1393 : "%<fmultiflags"
1394 : };
1395 :
1396 : #ifndef OPTION_DEFAULT_SPECS
1397 : #define OPTION_DEFAULT_SPECS { "", "" }
1398 : #endif
1399 :
1400 : struct default_spec
1401 : {
1402 : const char *name;
1403 : const char *spec;
1404 : };
1405 :
1406 : static const struct default_spec
1407 : option_default_specs[] = { OPTION_DEFAULT_SPECS };
1408 :
1409 : struct user_specs
1410 : {
1411 : struct user_specs *next;
1412 : const char *filename;
1413 : };
1414 :
1415 : static struct user_specs *user_specs_head, *user_specs_tail;
1416 :
1417 :
1418 : /* Record the mapping from file suffixes for compilation specs. */
1419 :
1420 : struct compiler
1421 : {
1422 : const char *suffix; /* Use this compiler for input files
1423 : whose names end in this suffix. */
1424 :
1425 : const char *spec; /* To use this compiler, run this spec. */
1426 :
1427 : const char *cpp_spec; /* If non-NULL, substitute this spec
1428 : for `%C', rather than the usual
1429 : cpp_spec. */
1430 : int combinable; /* If nonzero, compiler can deal with
1431 : multiple source files at once (IMA). */
1432 : int needs_preprocessing; /* If nonzero, source files need to
1433 : be run through a preprocessor. */
1434 : };
1435 :
1436 : /* Pointer to a vector of `struct compiler' that gives the spec for
1437 : compiling a file, based on its suffix.
1438 : A file that does not end in any of these suffixes will be passed
1439 : unchanged to the loader and nothing else will be done to it.
1440 :
1441 : An entry containing two 0s is used to terminate the vector.
1442 :
1443 : If multiple entries match a file, the last matching one is used. */
1444 :
1445 : static struct compiler *compilers;
1446 :
1447 : /* Number of entries in `compilers', not counting the null terminator. */
1448 :
1449 : static int n_compilers;
1450 :
1451 : /* The default list of file name suffixes and their compilation specs. */
1452 :
1453 : static const struct compiler default_compilers[] =
1454 : {
1455 : /* Add lists of suffixes of known languages here. If those languages
1456 : were not present when we built the driver, we will hit these copies
1457 : and be given a more meaningful error than "file not used since
1458 : linking is not done". */
1459 : {".m", "#Objective-C", 0, 0, 0}, {".mi", "#Objective-C", 0, 0, 0},
1460 : {".mm", "#Objective-C++", 0, 0, 0}, {".M", "#Objective-C++", 0, 0, 0},
1461 : {".mii", "#Objective-C++", 0, 0, 0},
1462 : {".cc", "#C++", 0, 0, 0}, {".cxx", "#C++", 0, 0, 0},
1463 : {".cpp", "#C++", 0, 0, 0}, {".cp", "#C++", 0, 0, 0},
1464 : {".c++", "#C++", 0, 0, 0}, {".C", "#C++", 0, 0, 0},
1465 : {".CPP", "#C++", 0, 0, 0}, {".ii", "#C++", 0, 0, 0},
1466 : {".ads", "#Ada", 0, 0, 0}, {".adb", "#Ada", 0, 0, 0},
1467 : {".f", "#Fortran", 0, 0, 0}, {".F", "#Fortran", 0, 0, 0},
1468 : {".for", "#Fortran", 0, 0, 0}, {".FOR", "#Fortran", 0, 0, 0},
1469 : {".ftn", "#Fortran", 0, 0, 0}, {".FTN", "#Fortran", 0, 0, 0},
1470 : {".fpp", "#Fortran", 0, 0, 0}, {".FPP", "#Fortran", 0, 0, 0},
1471 : {".f90", "#Fortran", 0, 0, 0}, {".F90", "#Fortran", 0, 0, 0},
1472 : {".f95", "#Fortran", 0, 0, 0}, {".F95", "#Fortran", 0, 0, 0},
1473 : {".f03", "#Fortran", 0, 0, 0}, {".F03", "#Fortran", 0, 0, 0},
1474 : {".f08", "#Fortran", 0, 0, 0}, {".F08", "#Fortran", 0, 0, 0},
1475 : {".r", "#Ratfor", 0, 0, 0},
1476 : {".go", "#Go", 0, 1, 0},
1477 : {".d", "#D", 0, 1, 0}, {".dd", "#D", 0, 1, 0}, {".di", "#D", 0, 1, 0},
1478 : {".mod", "#Modula-2", 0, 0, 0}, {".m2i", "#Modula-2", 0, 0, 0},
1479 : /* Next come the entries for C. */
1480 : {".c", "@c", 0, 0, 1},
1481 : {"@c",
1482 : /* cc1 has an integrated ISO C preprocessor. We should invoke the
1483 : external preprocessor if -save-temps is given. */
1484 : "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1485 : %{!E:%{!M:%{!MM:\
1486 : %{traditional:\
1487 : %eGNU C no longer supports -traditional without -E}\
1488 : %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1489 : %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1490 : cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1491 : %(cc1_options)}\
1492 : %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1493 : cc1 %(cpp_unique_options) %(cc1_options)}}}\
1494 : %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 1},
1495 : {"-",
1496 : "%{!E:%e-E or -x required when input is from standard input}\
1497 : %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0, 0, 0},
1498 : {".h", "@c-header", 0, 0, 0},
1499 : {"@c-header",
1500 : /* cc1 has an integrated ISO C preprocessor. We should invoke the
1501 : external preprocessor if -save-temps is given. */
1502 : "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\
1503 : %{!E:%{!M:%{!MM:\
1504 : %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
1505 : %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
1506 : cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
1507 : %(cc1_options)\
1508 : %{!fsyntax-only:%{!S:-o %g.s} \
1509 : %{!fdump-ada-spec*:%{!o*:--output-pch %w%i.gch}\
1510 : %W{o*:--output-pch %w%*}}%{!S:%V}}}\
1511 : %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
1512 : cc1 %(cpp_unique_options) %(cc1_options)\
1513 : %{!fsyntax-only:%{!S:-o %g.s} \
1514 : %{!fdump-ada-spec*:%{!o*:--output-pch %w%i.gch}\
1515 : %W{o*:--output-pch %w%*}}%{!S:%V}}}}}}}}", 0, 0, 0},
1516 : {".i", "@cpp-output", 0, 0, 0},
1517 : {"@cpp-output",
1518 : "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
1519 : {".s", "@assembler", 0, 0, 0},
1520 : {"@assembler",
1521 : "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 0, 0},
1522 : {".sx", "@assembler-with-cpp", 0, 0, 0},
1523 : {".S", "@assembler-with-cpp", 0, 0, 0},
1524 : {"@assembler-with-cpp",
1525 : #ifdef AS_NEEDS_DASH_FOR_PIPED_INPUT
1526 : "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1527 : %{E|M|MM:%(cpp_debug_options)}\
1528 : %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1529 : as %(asm_debug) %(asm_options) %|.s %A }}}}"
1530 : #else
1531 : "%(trad_capable_cpp) -lang-asm %(cpp_options) -fno-directives-only\
1532 : %{E|M|MM:%(cpp_debug_options)}\
1533 : %{!M:%{!MM:%{!E:%{!S:-o %|.s |\n\
1534 : as %(asm_debug) %(asm_options) %m.s %A }}}}"
1535 : #endif
1536 : , 0, 0, 0},
1537 :
1538 : #ifndef EXTRA_DEFAULT_COMPILERS
1539 : #define EXTRA_DEFAULT_COMPILERS
1540 : #endif
1541 : EXTRA_DEFAULT_COMPILERS
1542 :
1543 : #include "specs.h"
1544 : /* Mark end of table. */
1545 : {0, 0, 0, 0, 0}
1546 : };
1547 :
1548 : /* Number of elements in default_compilers, not counting the terminator. */
1549 :
1550 : static const int n_default_compilers = ARRAY_SIZE (default_compilers) - 1;
1551 :
1552 : typedef char *char_p; /* For DEF_VEC_P. */
1553 :
1554 : /* A vector of options to give to the linker.
1555 : These options are accumulated by %x,
1556 : and substituted into the linker command with %X. */
1557 : static vec<char_p> linker_options;
1558 :
1559 : /* A vector of options to give to the assembler.
1560 : These options are accumulated by -Wa,
1561 : and substituted into the assembler command with %Y. */
1562 : static vec<char_p> assembler_options;
1563 :
1564 : /* A vector of options to give to the preprocessor.
1565 : These options are accumulated by -Wp,
1566 : and substituted into the preprocessor command with %Z. */
1567 : static vec<char_p> preprocessor_options;
1568 :
1569 : static char *
1570 29608280 : skip_whitespace (char *p)
1571 : {
1572 68621085 : while (1)
1573 : {
1574 : /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1575 : be considered whitespace. */
1576 68621085 : if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1577 4968320 : return p + 1;
1578 63652765 : else if (*p == '\n' || *p == ' ' || *p == '\t')
1579 38892392 : p++;
1580 24760373 : else if (*p == '#')
1581 : {
1582 3739502 : while (*p != '\n')
1583 3619089 : p++;
1584 120413 : p++;
1585 : }
1586 : else
1587 : break;
1588 : }
1589 :
1590 : return p;
1591 : }
1592 : /* Structures to keep track of prefixes to try when looking for files. */
1593 :
1594 : struct prefix_list
1595 : {
1596 : const char *prefix; /* String to prepend to the path. */
1597 : struct prefix_list *next; /* Next in linked list. */
1598 : int require_machine_suffix; /* Don't use without machine_suffix. */
1599 : /* 2 means try both machine_suffix and just_machine_suffix. */
1600 : int priority; /* Sort key - priority within list. */
1601 : int os_multilib; /* 1 if OS multilib scheme should be used,
1602 : 0 for GCC multilib scheme. */
1603 : };
1604 :
1605 : struct path_prefix
1606 : {
1607 : struct prefix_list *plist; /* List of prefixes to try */
1608 : int max_len; /* Max length of a prefix in PLIST */
1609 : const char *name; /* Name of this list (used in config stuff) */
1610 : };
1611 :
1612 : /* List of prefixes to try when looking for executables. */
1613 :
1614 : static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1615 :
1616 : /* List of prefixes to try when looking for startup (crt0) files. */
1617 :
1618 : static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1619 :
1620 : /* List of prefixes to try when looking for include files. */
1621 :
1622 : static struct path_prefix include_prefixes = { 0, 0, "include" };
1623 :
1624 : /* Suffix to attach to directories searched for commands.
1625 : This looks like `MACHINE/VERSION/'. */
1626 :
1627 : static const char *machine_suffix = 0;
1628 :
1629 : /* Suffix to attach to directories searched for commands.
1630 : This is just `MACHINE/'. */
1631 :
1632 : static const char *just_machine_suffix = 0;
1633 :
1634 : /* Prefix to attach to *basename* of commands being searched.
1635 : This is just `MACHINE-'. */
1636 :
1637 : static const char *just_machine_prefix = 0;
1638 :
1639 : /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1640 :
1641 : static const char *gcc_exec_prefix;
1642 :
1643 : /* Adjusted value of standard_libexec_prefix. */
1644 :
1645 : static const char *gcc_libexec_prefix;
1646 :
1647 : /* Default prefixes to attach to command names. */
1648 :
1649 : #ifndef STANDARD_STARTFILE_PREFIX_1
1650 : #define STANDARD_STARTFILE_PREFIX_1 "/lib/"
1651 : #endif
1652 : #ifndef STANDARD_STARTFILE_PREFIX_2
1653 : #define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
1654 : #endif
1655 :
1656 : #ifdef CROSS_DIRECTORY_STRUCTURE /* Don't use these prefixes for a cross compiler. */
1657 : #undef MD_EXEC_PREFIX
1658 : #undef MD_STARTFILE_PREFIX
1659 : #undef MD_STARTFILE_PREFIX_1
1660 : #endif
1661 :
1662 : /* If no prefixes defined, use the null string, which will disable them. */
1663 : #ifndef MD_EXEC_PREFIX
1664 : #define MD_EXEC_PREFIX ""
1665 : #endif
1666 : #ifndef MD_STARTFILE_PREFIX
1667 : #define MD_STARTFILE_PREFIX ""
1668 : #endif
1669 : #ifndef MD_STARTFILE_PREFIX_1
1670 : #define MD_STARTFILE_PREFIX_1 ""
1671 : #endif
1672 :
1673 : /* These directories are locations set at configure-time based on the
1674 : --prefix option provided to configure. Their initializers are
1675 : defined in Makefile.in. These paths are not *directly* used when
1676 : gcc_exec_prefix is set because, in that case, we know where the
1677 : compiler has been installed, and use paths relative to that
1678 : location instead. */
1679 : static const char *const standard_exec_prefix = STANDARD_EXEC_PREFIX;
1680 : static const char *const standard_libexec_prefix = STANDARD_LIBEXEC_PREFIX;
1681 : static const char *const standard_bindir_prefix = STANDARD_BINDIR_PREFIX;
1682 : static const char *const standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1683 :
1684 : /* For native compilers, these are well-known paths containing
1685 : components that may be provided by the system. For cross
1686 : compilers, these paths are not used. */
1687 : static const char *md_exec_prefix = MD_EXEC_PREFIX;
1688 : static const char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1689 : static const char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1690 : static const char *const standard_startfile_prefix_1
1691 : = STANDARD_STARTFILE_PREFIX_1;
1692 : static const char *const standard_startfile_prefix_2
1693 : = STANDARD_STARTFILE_PREFIX_2;
1694 :
1695 : /* A relative path to be used in finding the location of tools
1696 : relative to the driver. */
1697 : static const char *const tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1698 :
1699 : /* A prefix to be used when this is an accelerator compiler. */
1700 : static const char *const accel_dir_suffix = ACCEL_DIR_SUFFIX;
1701 :
1702 : /* Subdirectory to use for locating libraries. Set by
1703 : set_multilib_dir based on the compilation options. */
1704 :
1705 : static const char *multilib_dir;
1706 :
1707 : /* Subdirectory to use for locating libraries in OS conventions. Set by
1708 : set_multilib_dir based on the compilation options. */
1709 :
1710 : static const char *multilib_os_dir;
1711 :
1712 : /* Subdirectory to use for locating libraries in multiarch conventions. Set by
1713 : set_multilib_dir based on the compilation options. */
1714 :
1715 : static const char *multiarch_dir;
1716 :
1717 : /* Structure to keep track of the specs that have been defined so far.
1718 : These are accessed using %(specname) in a compiler or link
1719 : spec. */
1720 :
1721 : struct spec_list
1722 : {
1723 : /* The following 2 fields must be first */
1724 : /* to allow EXTRA_SPECS to be initialized */
1725 : const char *name; /* name of the spec. */
1726 : const char *ptr; /* available ptr if no static pointer */
1727 :
1728 : /* The following fields are not initialized */
1729 : /* by EXTRA_SPECS */
1730 : const char **ptr_spec; /* pointer to the spec itself. */
1731 : struct spec_list *next; /* Next spec in linked list. */
1732 : int name_len; /* length of the name */
1733 : bool user_p; /* whether string come from file spec. */
1734 : bool alloc_p; /* whether string was allocated */
1735 : const char *default_ptr; /* The default value of *ptr_spec. */
1736 : };
1737 :
1738 : #define INIT_STATIC_SPEC(NAME,PTR) \
1739 : { NAME, NULL, PTR, (struct spec_list *) 0, sizeof (NAME) - 1, false, false, \
1740 : *PTR }
1741 :
1742 : /* List of statically defined specs. */
1743 : static struct spec_list static_specs[] =
1744 : {
1745 : INIT_STATIC_SPEC ("asm", &asm_spec),
1746 : INIT_STATIC_SPEC ("asm_debug", &asm_debug),
1747 : INIT_STATIC_SPEC ("asm_debug_option", &asm_debug_option),
1748 : INIT_STATIC_SPEC ("asm_final", &asm_final_spec),
1749 : INIT_STATIC_SPEC ("asm_options", &asm_options),
1750 : INIT_STATIC_SPEC ("invoke_as", &invoke_as),
1751 : INIT_STATIC_SPEC ("cpp", &cpp_spec),
1752 : INIT_STATIC_SPEC ("cpp_options", &cpp_options),
1753 : INIT_STATIC_SPEC ("cpp_debug_options", &cpp_debug_options),
1754 : INIT_STATIC_SPEC ("cpp_unique_options", &cpp_unique_options),
1755 : INIT_STATIC_SPEC ("trad_capable_cpp", &trad_capable_cpp),
1756 : INIT_STATIC_SPEC ("cc1", &cc1_spec),
1757 : INIT_STATIC_SPEC ("cc1_options", &cc1_options),
1758 : INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec),
1759 : INIT_STATIC_SPEC ("link_gcc_c_sequence", &link_gcc_c_sequence_spec),
1760 : INIT_STATIC_SPEC ("link_ssp", &link_ssp_spec),
1761 : INIT_STATIC_SPEC ("endfile", &endfile_spec),
1762 : INIT_STATIC_SPEC ("link", &link_spec),
1763 : INIT_STATIC_SPEC ("lib", &lib_spec),
1764 : INIT_STATIC_SPEC ("link_gomp", &link_gomp_spec),
1765 : INIT_STATIC_SPEC ("libgcc", &libgcc_spec),
1766 : INIT_STATIC_SPEC ("startfile", &startfile_spec),
1767 : INIT_STATIC_SPEC ("cross_compile", &cross_compile),
1768 : INIT_STATIC_SPEC ("version", &compiler_version),
1769 : INIT_STATIC_SPEC ("multilib", &multilib_select),
1770 : INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults),
1771 : INIT_STATIC_SPEC ("multilib_extra", &multilib_extra),
1772 : INIT_STATIC_SPEC ("multilib_matches", &multilib_matches),
1773 : INIT_STATIC_SPEC ("multilib_exclusions", &multilib_exclusions),
1774 : INIT_STATIC_SPEC ("multilib_options", &multilib_options),
1775 : INIT_STATIC_SPEC ("multilib_reuse", &multilib_reuse),
1776 : INIT_STATIC_SPEC ("linker", &linker_name_spec),
1777 : INIT_STATIC_SPEC ("linker_plugin_file", &linker_plugin_file_spec),
1778 : INIT_STATIC_SPEC ("lto_wrapper", <o_wrapper_spec),
1779 : INIT_STATIC_SPEC ("lto_gcc", <o_gcc_spec),
1780 : INIT_STATIC_SPEC ("post_link", &post_link_spec),
1781 : INIT_STATIC_SPEC ("link_libgcc", &link_libgcc_spec),
1782 : INIT_STATIC_SPEC ("md_exec_prefix", &md_exec_prefix),
1783 : INIT_STATIC_SPEC ("md_startfile_prefix", &md_startfile_prefix),
1784 : INIT_STATIC_SPEC ("md_startfile_prefix_1", &md_startfile_prefix_1),
1785 : INIT_STATIC_SPEC ("startfile_prefix_spec", &startfile_prefix_spec),
1786 : INIT_STATIC_SPEC ("sysroot_spec", &sysroot_spec),
1787 : INIT_STATIC_SPEC ("sysroot_suffix_spec", &sysroot_suffix_spec),
1788 : INIT_STATIC_SPEC ("sysroot_hdrs_suffix_spec", &sysroot_hdrs_suffix_spec),
1789 : INIT_STATIC_SPEC ("self_spec", &self_spec),
1790 : };
1791 :
1792 : #ifdef EXTRA_SPECS /* additional specs needed */
1793 : /* Structure to keep track of just the first two args of a spec_list.
1794 : That is all that the EXTRA_SPECS macro gives us. */
1795 : struct spec_list_1
1796 : {
1797 : const char *const name;
1798 : const char *const ptr;
1799 : };
1800 :
1801 : static const struct spec_list_1 extra_specs_1[] = { EXTRA_SPECS };
1802 : static struct spec_list *extra_specs = (struct spec_list *) 0;
1803 : #endif
1804 :
1805 : /* List of dynamically allocates specs that have been defined so far. */
1806 :
1807 : static struct spec_list *specs = (struct spec_list *) 0;
1808 :
1809 : /* List of static spec functions. */
1810 :
1811 : static const struct spec_function static_spec_functions[] =
1812 : {
1813 : { "getenv", getenv_spec_function },
1814 : { "if-exists", if_exists_spec_function },
1815 : { "if-exists-else", if_exists_else_spec_function },
1816 : { "if-exists-then-else", if_exists_then_else_spec_function },
1817 : { "sanitize", sanitize_spec_function },
1818 : { "replace-outfile", replace_outfile_spec_function },
1819 : { "remove-outfile", remove_outfile_spec_function },
1820 : { "version-compare", version_compare_spec_function },
1821 : { "include", include_spec_function },
1822 : { "find-file", find_file_spec_function },
1823 : { "find-plugindir", find_plugindir_spec_function },
1824 : { "print-asm-header", print_asm_header_spec_function },
1825 : { "compare-debug-dump-opt", compare_debug_dump_opt_spec_function },
1826 : { "compare-debug-self-opt", compare_debug_self_opt_spec_function },
1827 : { "pass-through-libs", pass_through_libs_spec_func },
1828 : { "dumps", dumps_spec_func },
1829 : { "gt", greater_than_spec_func },
1830 : { "debug-level-gt", debug_level_greater_than_spec_func },
1831 : { "dwarf-version-gt", dwarf_version_greater_than_spec_func },
1832 : { "fortran-preinclude-file", find_fortran_preinclude_file},
1833 : { "join", join_spec_func},
1834 : #ifdef EXTRA_SPEC_FUNCTIONS
1835 : EXTRA_SPEC_FUNCTIONS
1836 : #endif
1837 : { 0, 0 }
1838 : };
1839 :
1840 : static int processing_spec_function;
1841 :
1842 : /* Add appropriate libgcc specs to OBSTACK, taking into account
1843 : various permutations of -shared-libgcc, -shared, and such. */
1844 :
1845 : #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1846 :
1847 : #ifndef USE_LD_AS_NEEDED
1848 : #define USE_LD_AS_NEEDED 0
1849 : #endif
1850 :
1851 : static void
1852 1197 : init_gcc_specs (struct obstack *obstack, const char *shared_name,
1853 : const char *static_name, const char *eh_name)
1854 : {
1855 1197 : char *buf;
1856 :
1857 : #if USE_LD_AS_NEEDED
1858 : #if defined(USE_LD_AS_NEEDED_LDSCRIPT) && !defined(USE_LIBUNWIND_EXCEPTIONS)
1859 1197 : buf = concat ("%{static|static-libgcc|static-pie:", static_name, " ", eh_name, "}"
1860 : "%{!static:%{!static-libgcc:%{!static-pie:"
1861 : "%{!shared-libgcc:",
1862 : static_name, " ",
1863 : shared_name, "_asneeded}"
1864 : "%{shared-libgcc:",
1865 : shared_name, "%{!shared: ", static_name, "}"
1866 : "}}"
1867 : #else
1868 : buf = concat ("%{static|static-libgcc|static-pie:", static_name, " ", eh_name, "}"
1869 : "%{!static:%{!static-libgcc:%{!static-pie:"
1870 : "%{!shared-libgcc:",
1871 : static_name, " " LD_AS_NEEDED_OPTION " ",
1872 : shared_name, " " LD_NO_AS_NEEDED_OPTION
1873 : "}"
1874 : "%{shared-libgcc:",
1875 : shared_name, "%{!shared: ", static_name, "}"
1876 : "}}"
1877 : #endif
1878 : #else
1879 : buf = concat ("%{static|static-libgcc:", static_name, " ", eh_name, "}"
1880 : "%{!static:%{!static-libgcc:"
1881 : "%{!shared:"
1882 : "%{!shared-libgcc:", static_name, " ", eh_name, "}"
1883 : "%{shared-libgcc:", shared_name, " ", static_name, "}"
1884 : "}"
1885 : #ifdef LINK_EH_SPEC
1886 : "%{shared:"
1887 : "%{shared-libgcc:", shared_name, "}"
1888 : "%{!shared-libgcc:", static_name, "}"
1889 : "}"
1890 : #else
1891 : "%{shared:", shared_name, "}"
1892 : #endif
1893 : #endif
1894 : "}}", NULL);
1895 :
1896 1197 : obstack_grow (obstack, buf, strlen (buf));
1897 1197 : free (buf);
1898 1197 : }
1899 : #endif /* ENABLE_SHARED_LIBGCC */
1900 :
1901 : /* Initialize the specs lookup routines. */
1902 :
1903 : static void
1904 1197 : init_spec (void)
1905 : {
1906 1197 : struct spec_list *next = (struct spec_list *) 0;
1907 1197 : struct spec_list *sl = (struct spec_list *) 0;
1908 1197 : int i;
1909 :
1910 1197 : if (specs)
1911 : return; /* Already initialized. */
1912 :
1913 1197 : if (verbose_flag)
1914 108 : fnotice (stderr, "Using built-in specs.\n");
1915 :
1916 : #ifdef EXTRA_SPECS
1917 1197 : extra_specs = XCNEWVEC (struct spec_list, ARRAY_SIZE (extra_specs_1));
1918 :
1919 2394 : for (i = ARRAY_SIZE (extra_specs_1) - 1; i >= 0; i--)
1920 : {
1921 1197 : sl = &extra_specs[i];
1922 1197 : sl->name = extra_specs_1[i].name;
1923 1197 : sl->ptr = extra_specs_1[i].ptr;
1924 1197 : sl->next = next;
1925 1197 : sl->name_len = strlen (sl->name);
1926 1197 : sl->ptr_spec = &sl->ptr;
1927 1197 : gcc_assert (sl->ptr_spec != NULL);
1928 1197 : sl->default_ptr = sl->ptr;
1929 1197 : next = sl;
1930 : }
1931 : #endif
1932 :
1933 55062 : for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
1934 : {
1935 53865 : sl = &static_specs[i];
1936 53865 : sl->next = next;
1937 53865 : next = sl;
1938 : }
1939 :
1940 : #if defined(ENABLE_SHARED_LIBGCC) && !defined(REAL_LIBGCC_SPEC)
1941 : /* ??? If neither -shared-libgcc nor --static-libgcc was
1942 : seen, then we should be making an educated guess. Some proposed
1943 : heuristics for ELF include:
1944 :
1945 : (1) If "-Wl,--export-dynamic", then it's a fair bet that the
1946 : program will be doing dynamic loading, which will likely
1947 : need the shared libgcc.
1948 :
1949 : (2) If "-ldl", then it's also a fair bet that we're doing
1950 : dynamic loading.
1951 :
1952 : (3) For each ET_DYN we're linking against (either through -lfoo
1953 : or /some/path/foo.so), check to see whether it or one of
1954 : its dependencies depends on a shared libgcc.
1955 :
1956 : (4) If "-shared"
1957 :
1958 : If the runtime is fixed to look for program headers instead
1959 : of calling __register_frame_info at all, for each object,
1960 : use the shared libgcc if any EH symbol referenced.
1961 :
1962 : If crtstuff is fixed to not invoke __register_frame_info
1963 : automatically, for each object, use the shared libgcc if
1964 : any non-empty unwind section found.
1965 :
1966 : Doing any of this probably requires invoking an external program to
1967 : do the actual object file scanning. */
1968 1197 : {
1969 1197 : const char *p = libgcc_spec;
1970 1197 : int in_sep = 1;
1971 :
1972 : /* Transform the extant libgcc_spec into one that uses the shared libgcc
1973 : when given the proper command line arguments. */
1974 2394 : while (*p)
1975 : {
1976 1197 : if (in_sep && *p == '-' && startswith (p, "-lgcc"))
1977 : {
1978 1197 : init_gcc_specs (&obstack,
1979 : "-lgcc_s"
1980 : #ifdef USE_LIBUNWIND_EXCEPTIONS
1981 : " -lunwind"
1982 : #endif
1983 : ,
1984 : "-lgcc",
1985 : "-lgcc_eh"
1986 : #ifdef USE_LIBUNWIND_EXCEPTIONS
1987 : # ifdef HAVE_LD_STATIC_DYNAMIC
1988 : " %{!static:%{!static-pie:" LD_STATIC_OPTION "}} -lunwind"
1989 : " %{!static:%{!static-pie:" LD_DYNAMIC_OPTION "}}"
1990 : # else
1991 : " -lunwind"
1992 : # endif
1993 : #endif
1994 : );
1995 :
1996 1197 : p += 5;
1997 1197 : in_sep = 0;
1998 : }
1999 0 : else if (in_sep && *p == 'l' && startswith (p, "libgcc.a%s"))
2000 : {
2001 : /* Ug. We don't know shared library extensions. Hope that
2002 : systems that use this form don't do shared libraries. */
2003 0 : init_gcc_specs (&obstack,
2004 : "-lgcc_s",
2005 : "libgcc.a%s",
2006 : "libgcc_eh.a%s"
2007 : #ifdef USE_LIBUNWIND_EXCEPTIONS
2008 : " -lunwind"
2009 : #endif
2010 : );
2011 0 : p += 10;
2012 0 : in_sep = 0;
2013 : }
2014 : else
2015 : {
2016 0 : obstack_1grow (&obstack, *p);
2017 0 : in_sep = (*p == ' ');
2018 0 : p += 1;
2019 : }
2020 : }
2021 :
2022 1197 : obstack_1grow (&obstack, '\0');
2023 1197 : libgcc_spec = XOBFINISH (&obstack, const char *);
2024 : }
2025 : #endif
2026 : #ifdef USE_AS_TRADITIONAL_FORMAT
2027 : /* Prepend "--traditional-format" to whatever asm_spec we had before. */
2028 : {
2029 : static const char tf[] = "--traditional-format ";
2030 : obstack_grow (&obstack, tf, sizeof (tf) - 1);
2031 : obstack_grow0 (&obstack, asm_spec, strlen (asm_spec));
2032 : asm_spec = XOBFINISH (&obstack, const char *);
2033 : }
2034 : #endif
2035 :
2036 : #if defined LINK_EH_SPEC || defined LINK_BUILDID_SPEC || \
2037 : defined LINKER_HASH_STYLE
2038 : # ifdef LINK_BUILDID_SPEC
2039 : /* Prepend LINK_BUILDID_SPEC to whatever link_spec we had before. */
2040 : obstack_grow (&obstack, LINK_BUILDID_SPEC, sizeof (LINK_BUILDID_SPEC) - 1);
2041 : # endif
2042 : # ifdef LINK_EH_SPEC
2043 : /* Prepend LINK_EH_SPEC to whatever link_spec we had before. */
2044 1197 : obstack_grow (&obstack, LINK_EH_SPEC, sizeof (LINK_EH_SPEC) - 1);
2045 : # endif
2046 : # ifdef LINKER_HASH_STYLE
2047 : /* Prepend --hash-style=LINKER_HASH_STYLE to whatever link_spec we had
2048 : before. */
2049 : {
2050 : static const char hash_style[] = "--hash-style=";
2051 : obstack_grow (&obstack, hash_style, sizeof (hash_style) - 1);
2052 : obstack_grow (&obstack, LINKER_HASH_STYLE, sizeof (LINKER_HASH_STYLE) - 1);
2053 : obstack_1grow (&obstack, ' ');
2054 : }
2055 : # endif
2056 1197 : obstack_grow0 (&obstack, link_spec, strlen (link_spec));
2057 1197 : link_spec = XOBFINISH (&obstack, const char *);
2058 : #endif
2059 :
2060 1197 : specs = sl;
2061 : }
2062 :
2063 : /* Update the entry for SPEC in the static_specs table to point to VALUE,
2064 : ensuring that we free the previous value if necessary. Set alloc_p for the
2065 : entry to ALLOC_P: this determines whether we take ownership of VALUE (i.e.
2066 : whether we need to free it later on). */
2067 : static void
2068 215819 : set_static_spec (const char **spec, const char *value, bool alloc_p)
2069 : {
2070 215819 : struct spec_list *sl = NULL;
2071 :
2072 7450877 : for (unsigned i = 0; i < ARRAY_SIZE (static_specs); i++)
2073 : {
2074 7450877 : if (static_specs[i].ptr_spec == spec)
2075 : {
2076 215819 : sl = static_specs + i;
2077 215819 : break;
2078 : }
2079 : }
2080 :
2081 0 : gcc_assert (sl);
2082 :
2083 215819 : if (sl->alloc_p)
2084 : {
2085 215819 : const char *old = *spec;
2086 215819 : free (const_cast <char *> (old));
2087 : }
2088 :
2089 215819 : *spec = value;
2090 215819 : sl->alloc_p = alloc_p;
2091 215819 : }
2092 :
2093 : /* Update a static spec to a new string, taking ownership of that
2094 : string's memory. */
2095 113099 : static void set_static_spec_owned (const char **spec, const char *val)
2096 : {
2097 0 : return set_static_spec (spec, val, true);
2098 : }
2099 :
2100 : /* Update a static spec to point to a new value, but don't take
2101 : ownership of (i.e. don't free) that string. */
2102 102720 : static void set_static_spec_shared (const char **spec, const char *val)
2103 : {
2104 0 : return set_static_spec (spec, val, false);
2105 : }
2106 :
2107 :
2108 : /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
2109 : removed; If the spec starts with a + then SPEC is added to the end of the
2110 : current spec. */
2111 :
2112 : static void
2113 14333379 : set_spec (const char *name, const char *spec, bool user_p)
2114 : {
2115 14333379 : struct spec_list *sl;
2116 14333379 : const char *old_spec;
2117 14333379 : int name_len = strlen (name);
2118 14333379 : int i;
2119 :
2120 : /* If this is the first call, initialize the statically allocated specs. */
2121 14333379 : if (!specs)
2122 : {
2123 : struct spec_list *next = (struct spec_list *) 0;
2124 14283920 : for (i = ARRAY_SIZE (static_specs) - 1; i >= 0; i--)
2125 : {
2126 13973400 : sl = &static_specs[i];
2127 13973400 : sl->next = next;
2128 13973400 : next = sl;
2129 : }
2130 310520 : specs = sl;
2131 : }
2132 :
2133 : /* See if the spec already exists. */
2134 337275181 : for (sl = specs; sl; sl = sl->next)
2135 336942957 : if (name_len == sl->name_len && !strcmp (sl->name, name))
2136 : break;
2137 :
2138 14333379 : if (!sl)
2139 : {
2140 : /* Not found - make it. */
2141 332224 : sl = XNEW (struct spec_list);
2142 332224 : sl->name = xstrdup (name);
2143 332224 : sl->name_len = name_len;
2144 332224 : sl->ptr_spec = &sl->ptr;
2145 332224 : sl->alloc_p = 0;
2146 332224 : *(sl->ptr_spec) = "";
2147 332224 : sl->next = specs;
2148 332224 : sl->default_ptr = NULL;
2149 332224 : specs = sl;
2150 : }
2151 :
2152 14333379 : old_spec = *(sl->ptr_spec);
2153 14333379 : *(sl->ptr_spec) = ((spec[0] == '+' && ISSPACE ((unsigned char)spec[1]))
2154 1 : ? concat (old_spec, spec + 1, NULL)
2155 14333378 : : xstrdup (spec));
2156 :
2157 : #ifdef DEBUG_SPECS
2158 : if (verbose_flag)
2159 : fnotice (stderr, "Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec));
2160 : #endif
2161 :
2162 : /* Free the old spec. */
2163 14333379 : if (old_spec && sl->alloc_p)
2164 6144 : free (const_cast<char *> (old_spec));
2165 :
2166 14333379 : sl->user_p = user_p;
2167 14333379 : sl->alloc_p = true;
2168 14333379 : }
2169 :
2170 : /* Accumulate a command (program name and args), and run it. */
2171 :
2172 : typedef const char *const_char_p; /* For DEF_VEC_P. */
2173 :
2174 : /* Vector of pointers to arguments in the current line of specifications. */
2175 : static vec<const_char_p> argbuf;
2176 :
2177 : /* Likewise, but for the current @file. */
2178 : static vec<const_char_p> at_file_argbuf;
2179 :
2180 : /* Whether an @file is currently open. */
2181 : static bool in_at_file = false;
2182 :
2183 : /* Were the options -c, -S or -E passed. */
2184 : static int have_c = 0;
2185 :
2186 : /* Was the option -o passed. */
2187 : static int have_o = 0;
2188 :
2189 : /* Was the option -E passed. */
2190 : static int have_E = 0;
2191 :
2192 : /* Pointer to output file name passed in with -o. */
2193 : static const char *output_file = 0;
2194 :
2195 : /* Pointer to input file name passed in with -truncate.
2196 : This file should be truncated after linking. */
2197 : static const char *totruncate_file = 0;
2198 :
2199 : /* This is the list of suffixes and codes (%g/%u/%U/%j) and the associated
2200 : temp file. If the HOST_BIT_BUCKET is used for %j, no entry is made for
2201 : it here. */
2202 :
2203 : static struct temp_name {
2204 : const char *suffix; /* suffix associated with the code. */
2205 : int length; /* strlen (suffix). */
2206 : int unique; /* Indicates whether %g or %u/%U was used. */
2207 : const char *filename; /* associated filename. */
2208 : int filename_length; /* strlen (filename). */
2209 : struct temp_name *next;
2210 : } *temp_names;
2211 :
2212 : /* Number of commands executed so far. */
2213 :
2214 : static int execution_count;
2215 :
2216 : /* Number of commands that exited with a signal. */
2217 :
2218 : static int signal_count;
2219 :
2220 : /* Allocate the argument vector. */
2221 :
2222 : static void
2223 2444633 : alloc_args (void)
2224 : {
2225 2444633 : argbuf.create (10);
2226 2444633 : at_file_argbuf.create (10);
2227 2444633 : }
2228 :
2229 : /* Clear out the vector of arguments (after a command is executed). */
2230 :
2231 : static void
2232 5794688 : clear_args (void)
2233 : {
2234 5794688 : argbuf.truncate (0);
2235 5794688 : at_file_argbuf.truncate (0);
2236 5794688 : }
2237 :
2238 : /* Add one argument to the vector at the end.
2239 : This is done when a space is seen or at the end of the line.
2240 : If DELETE_ALWAYS is nonzero, the arg is a filename
2241 : and the file should be deleted eventually.
2242 : If DELETE_FAILURE is nonzero, the arg is a filename
2243 : and the file should be deleted if this compilation fails. */
2244 :
2245 : static void
2246 19911415 : store_arg (const char *arg, int delete_always, int delete_failure)
2247 : {
2248 19911415 : if (in_at_file)
2249 14818 : at_file_argbuf.safe_push (arg);
2250 : else
2251 19896597 : argbuf.safe_push (arg);
2252 :
2253 19911415 : if (delete_always || delete_failure)
2254 : {
2255 538121 : const char *p;
2256 : /* If the temporary file we should delete is specified as
2257 : part of a joined argument extract the filename. */
2258 538121 : if (arg[0] == '-'
2259 538121 : && (p = strrchr (arg, '=')))
2260 93514 : arg = p + 1;
2261 538121 : record_temp_file (arg, delete_always, delete_failure);
2262 : }
2263 19911415 : }
2264 :
2265 : /* Open a temporary @file into which subsequent arguments will be stored. */
2266 :
2267 : static void
2268 13892 : open_at_file (void)
2269 : {
2270 13892 : if (in_at_file)
2271 0 : fatal_error (input_location, "cannot open nested response file");
2272 : else
2273 13892 : in_at_file = true;
2274 13892 : }
2275 :
2276 : /* Create a temporary @file name. */
2277 :
2278 13756 : static char *make_at_file (void)
2279 : {
2280 13756 : static int fileno = 0;
2281 13756 : char filename[20];
2282 13756 : const char *base, *ext;
2283 :
2284 13756 : if (!save_temps_flag)
2285 13718 : return make_temp_file ("");
2286 :
2287 38 : base = dumpbase;
2288 38 : if (!(base && *base))
2289 11 : base = dumpdir;
2290 38 : if (!(base && *base))
2291 0 : base = "a";
2292 :
2293 38 : sprintf (filename, ".args.%d", fileno++);
2294 38 : ext = filename;
2295 :
2296 38 : if (base == dumpdir && dumpdir_trailing_dash_added)
2297 38 : ext++;
2298 :
2299 38 : return concat (base, ext, NULL);
2300 : }
2301 :
2302 : /* Close the temporary @file and add @file to the argument list. */
2303 :
2304 : static void
2305 13892 : close_at_file (void)
2306 : {
2307 13892 : if (!in_at_file)
2308 0 : fatal_error (input_location, "cannot close nonexistent response file");
2309 :
2310 13892 : in_at_file = false;
2311 :
2312 13892 : const unsigned int n_args = at_file_argbuf.length ();
2313 13892 : if (n_args == 0)
2314 : return;
2315 :
2316 13756 : char **argv = XALLOCAVEC (char *, n_args + 1);
2317 13756 : char *temp_file = make_at_file ();
2318 13756 : char *at_argument = concat ("@", temp_file, NULL);
2319 13756 : FILE *f = fopen (temp_file, "w");
2320 13756 : int status;
2321 13756 : unsigned int i;
2322 :
2323 : /* Copy the strings over. */
2324 42330 : for (i = 0; i < n_args; i++)
2325 14818 : argv[i] = const_cast<char *> (at_file_argbuf[i]);
2326 13756 : argv[i] = NULL;
2327 :
2328 13756 : at_file_argbuf.truncate (0);
2329 :
2330 13756 : if (f == NULL)
2331 0 : fatal_error (input_location, "could not open temporary response file %s",
2332 : temp_file);
2333 :
2334 13756 : status = writeargv (argv, f);
2335 :
2336 13756 : if (status)
2337 0 : fatal_error (input_location,
2338 : "could not write to temporary response file %s",
2339 : temp_file);
2340 :
2341 13756 : status = fclose (f);
2342 :
2343 13756 : if (status == EOF)
2344 0 : fatal_error (input_location, "could not close temporary response file %s",
2345 : temp_file);
2346 :
2347 13756 : store_arg (at_argument, 0, 0);
2348 :
2349 13756 : record_temp_file (temp_file, !save_temps_flag, !save_temps_flag);
2350 : }
2351 :
2352 : /* Load specs from a file name named FILENAME, replacing occurrences of
2353 : various different types of line-endings, \r\n, \n\r and just \r, with
2354 : a single \n. */
2355 :
2356 : static char *
2357 342094 : load_specs (const char *filename)
2358 : {
2359 342094 : int desc;
2360 342094 : int readlen;
2361 342094 : struct stat statbuf;
2362 342094 : char *buffer;
2363 342094 : char *buffer_p;
2364 342094 : char *specs;
2365 342094 : char *specs_p;
2366 :
2367 342094 : if (verbose_flag)
2368 1552 : fnotice (stderr, "Reading specs from %s\n", filename);
2369 :
2370 : /* Open and stat the file. */
2371 342094 : desc = open (filename, O_RDONLY, 0);
2372 342094 : if (desc < 0)
2373 : {
2374 1 : failed:
2375 : /* This leaves DESC open, but the OS will save us. */
2376 1 : fatal_error (input_location, "cannot read spec file %qs: %m", filename);
2377 : }
2378 :
2379 342093 : if (stat (filename, &statbuf) < 0)
2380 0 : goto failed;
2381 :
2382 : /* Read contents of file into BUFFER. */
2383 342093 : buffer = XNEWVEC (char, statbuf.st_size + 1);
2384 342093 : readlen = read (desc, buffer, (unsigned) statbuf.st_size);
2385 342093 : if (readlen < 0)
2386 0 : goto failed;
2387 342093 : buffer[readlen] = 0;
2388 342093 : close (desc);
2389 :
2390 342093 : specs = XNEWVEC (char, readlen + 1);
2391 342093 : specs_p = specs;
2392 3122533652 : for (buffer_p = buffer; buffer_p && *buffer_p; buffer_p++)
2393 : {
2394 3122191559 : int skip = 0;
2395 3122191559 : char c = *buffer_p;
2396 3122191559 : if (c == '\r')
2397 : {
2398 0 : if (buffer_p > buffer && *(buffer_p - 1) == '\n') /* \n\r */
2399 : skip = 1;
2400 0 : else if (*(buffer_p + 1) == '\n') /* \r\n */
2401 : skip = 1;
2402 : else /* \r */
2403 : c = '\n';
2404 : }
2405 : if (! skip)
2406 3122191559 : *specs_p++ = c;
2407 : }
2408 342093 : *specs_p = '\0';
2409 :
2410 342093 : free (buffer);
2411 342093 : return (specs);
2412 : }
2413 :
2414 : /* Read compilation specs from a file named FILENAME,
2415 : replacing the default ones.
2416 :
2417 : A suffix which starts with `*' is a definition for
2418 : one of the machine-specific sub-specs. The "suffix" should be
2419 : *asm, *cc1, *cpp, *link, *startfile, etc.
2420 : The corresponding spec is stored in asm_spec, etc.,
2421 : rather than in the `compilers' vector.
2422 :
2423 : Anything invalid in the file is a fatal error. */
2424 :
2425 : static void
2426 342094 : read_specs (const char *filename, bool main_p, bool user_p)
2427 : {
2428 342094 : char *buffer;
2429 342094 : char *p;
2430 :
2431 342094 : buffer = load_specs (filename);
2432 :
2433 : /* Scan BUFFER for specs, putting them in the vector. */
2434 342094 : p = buffer;
2435 14985992 : while (1)
2436 : {
2437 14985992 : char *suffix;
2438 14985992 : char *spec;
2439 14985992 : char *in, *out, *p1, *p2, *p3;
2440 :
2441 : /* Advance P in BUFFER to the next nonblank nocomment line. */
2442 14985992 : p = skip_whitespace (p);
2443 14985992 : if (*p == 0)
2444 : break;
2445 :
2446 : /* Is this a special command that starts with '%'? */
2447 : /* Don't allow this for the main specs file, since it would
2448 : encourage people to overwrite it. */
2449 14643899 : if (*p == '%' && !main_p)
2450 : {
2451 432220 : p1 = p;
2452 432220 : while (*p && *p != '\n')
2453 410609 : p++;
2454 :
2455 : /* Skip '\n'. */
2456 21611 : p++;
2457 :
2458 21611 : if (startswith (p1, "%include")
2459 21611 : && (p1[sizeof "%include" - 1] == ' '
2460 0 : || p1[sizeof "%include" - 1] == '\t'))
2461 : {
2462 0 : char *new_filename;
2463 :
2464 0 : p1 += sizeof ("%include");
2465 0 : while (*p1 == ' ' || *p1 == '\t')
2466 0 : p1++;
2467 :
2468 0 : if (*p1++ != '<' || p[-2] != '>')
2469 0 : fatal_error (input_location,
2470 : "specs %%include syntax malformed after "
2471 0 : "%td characters", p1 - buffer + 1);
2472 :
2473 0 : p[-2] = '\0';
2474 0 : new_filename = find_a_file (&startfile_prefixes, p1, true);
2475 0 : read_specs (new_filename ? new_filename : p1, false, user_p);
2476 0 : continue;
2477 0 : }
2478 21611 : else if (startswith (p1, "%include_noerr")
2479 21611 : && (p1[sizeof "%include_noerr" - 1] == ' '
2480 0 : || p1[sizeof "%include_noerr" - 1] == '\t'))
2481 : {
2482 0 : char *new_filename;
2483 :
2484 0 : p1 += sizeof "%include_noerr";
2485 0 : while (*p1 == ' ' || *p1 == '\t')
2486 0 : p1++;
2487 :
2488 0 : if (*p1++ != '<' || p[-2] != '>')
2489 0 : fatal_error (input_location,
2490 : "specs %%include syntax malformed after "
2491 0 : "%td characters", p1 - buffer + 1);
2492 :
2493 0 : p[-2] = '\0';
2494 0 : new_filename = find_a_file (&startfile_prefixes, p1, true);
2495 0 : if (new_filename)
2496 0 : read_specs (new_filename, false, user_p);
2497 0 : else if (verbose_flag)
2498 0 : fnotice (stderr, "could not find specs file %s\n", p1);
2499 0 : continue;
2500 0 : }
2501 21611 : else if (startswith (p1, "%rename")
2502 21611 : && (p1[sizeof "%rename" - 1] == ' '
2503 0 : || p1[sizeof "%rename" - 1] == '\t'))
2504 : {
2505 21611 : int name_len;
2506 21611 : struct spec_list *sl;
2507 21611 : struct spec_list *newsl;
2508 :
2509 : /* Get original name. */
2510 21611 : p1 += sizeof "%rename";
2511 21611 : while (*p1 == ' ' || *p1 == '\t')
2512 0 : p1++;
2513 :
2514 21611 : if (! ISALPHA ((unsigned char) *p1))
2515 0 : fatal_error (input_location,
2516 : "specs %%rename syntax malformed after "
2517 : "%td characters", p1 - buffer);
2518 :
2519 : p2 = p1;
2520 86444 : while (*p2 && !ISSPACE ((unsigned char) *p2))
2521 64833 : p2++;
2522 :
2523 21611 : if (*p2 != ' ' && *p2 != '\t')
2524 0 : fatal_error (input_location,
2525 : "specs %%rename syntax malformed after "
2526 : "%td characters", p2 - buffer);
2527 :
2528 21611 : name_len = p2 - p1;
2529 21611 : *p2++ = '\0';
2530 21611 : while (*p2 == ' ' || *p2 == '\t')
2531 0 : p2++;
2532 :
2533 21611 : if (! ISALPHA ((unsigned char) *p2))
2534 0 : fatal_error (input_location,
2535 : "specs %%rename syntax malformed after "
2536 : "%td characters", p2 - buffer);
2537 :
2538 : /* Get new spec name. */
2539 : p3 = p2;
2540 172888 : while (*p3 && !ISSPACE ((unsigned char) *p3))
2541 151277 : p3++;
2542 :
2543 21611 : if (p3 != p - 1)
2544 0 : fatal_error (input_location,
2545 : "specs %%rename syntax malformed after "
2546 : "%td characters", p3 - buffer);
2547 21611 : *p3 = '\0';
2548 :
2549 432220 : for (sl = specs; sl; sl = sl->next)
2550 432220 : if (name_len == sl->name_len && !strcmp (sl->name, p1))
2551 : break;
2552 :
2553 21611 : if (!sl)
2554 0 : fatal_error (input_location,
2555 : "specs %s spec was not found to be renamed", p1);
2556 :
2557 21611 : if (strcmp (p1, p2) == 0)
2558 0 : continue;
2559 :
2560 1015717 : for (newsl = specs; newsl; newsl = newsl->next)
2561 994106 : if (strcmp (newsl->name, p2) == 0)
2562 0 : fatal_error (input_location,
2563 : "%s: attempt to rename spec %qs to "
2564 : "already defined spec %qs",
2565 : filename, p1, p2);
2566 :
2567 21611 : if (verbose_flag)
2568 : {
2569 0 : fnotice (stderr, "rename spec %s to %s\n", p1, p2);
2570 : #ifdef DEBUG_SPECS
2571 : fnotice (stderr, "spec is '%s'\n\n", *(sl->ptr_spec));
2572 : #endif
2573 : }
2574 :
2575 21611 : set_spec (p2, *(sl->ptr_spec), user_p);
2576 21611 : if (sl->alloc_p)
2577 21611 : free (const_cast<char *> (*(sl->ptr_spec)));
2578 :
2579 21611 : *(sl->ptr_spec) = "";
2580 21611 : sl->alloc_p = 0;
2581 21611 : continue;
2582 21611 : }
2583 : else
2584 0 : fatal_error (input_location,
2585 : "specs unknown %% command after %td characters",
2586 : p1 - buffer);
2587 : }
2588 :
2589 : /* Find the colon that should end the suffix. */
2590 : p1 = p;
2591 200772822 : while (*p1 && *p1 != ':' && *p1 != '\n')
2592 186150534 : p1++;
2593 :
2594 : /* The colon shouldn't be missing. */
2595 14622288 : if (*p1 != ':')
2596 0 : fatal_error (input_location,
2597 : "specs file malformed after %td characters",
2598 : p1 - buffer);
2599 :
2600 : /* Skip back over trailing whitespace. */
2601 : p2 = p1;
2602 14622288 : while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t'))
2603 0 : p2--;
2604 :
2605 : /* Copy the suffix to a string. */
2606 14622288 : suffix = save_string (p, p2 - p);
2607 : /* Find the next line. */
2608 14622288 : p = skip_whitespace (p1 + 1);
2609 14622288 : if (p[1] == 0)
2610 0 : fatal_error (input_location,
2611 : "specs file malformed after %td characters",
2612 : p - buffer);
2613 :
2614 : p1 = p;
2615 : /* Find next blank line or end of string. */
2616 2888008591 : while (*p1 && !(*p1 == '\n' && (p1[1] == '\n' || p1[1] == '\0')))
2617 2873386303 : p1++;
2618 :
2619 : /* Specs end at the blank line and do not include the newline. */
2620 14622288 : spec = save_string (p, p1 - p);
2621 14622288 : p = p1;
2622 :
2623 : /* Delete backslash-newline sequences from the spec. */
2624 14622288 : in = spec;
2625 14622288 : out = spec;
2626 2902630877 : while (*in != 0)
2627 : {
2628 2873386301 : if (in[0] == '\\' && in[1] == '\n')
2629 2 : in += 2;
2630 2873386299 : else if (in[0] == '#')
2631 0 : while (*in && *in != '\n')
2632 0 : in++;
2633 :
2634 : else
2635 2873386299 : *out++ = *in++;
2636 : }
2637 14622288 : *out = 0;
2638 :
2639 14622288 : if (suffix[0] == '*')
2640 : {
2641 14622288 : if (! strcmp (suffix, "*link_command"))
2642 310520 : link_command_spec = spec;
2643 : else
2644 : {
2645 14311768 : set_spec (suffix + 1, spec, user_p);
2646 14311768 : free (spec);
2647 : }
2648 : }
2649 : else
2650 : {
2651 : /* Add this pair to the vector. */
2652 0 : compilers
2653 0 : = XRESIZEVEC (struct compiler, compilers, n_compilers + 2);
2654 :
2655 0 : compilers[n_compilers].suffix = suffix;
2656 0 : compilers[n_compilers].spec = spec;
2657 0 : n_compilers++;
2658 0 : memset (&compilers[n_compilers], 0, sizeof compilers[n_compilers]);
2659 : }
2660 :
2661 14622288 : if (*suffix == 0)
2662 0 : link_command_spec = spec;
2663 : }
2664 :
2665 342093 : if (link_command_spec == 0)
2666 0 : fatal_error (input_location, "spec file has no spec for linking");
2667 :
2668 342093 : XDELETEVEC (buffer);
2669 342093 : }
2670 :
2671 : /* Record the names of temporary files we tell compilers to write,
2672 : and delete them at the end of the run. */
2673 :
2674 : /* This is the common prefix we use to make temp file names.
2675 : It is chosen once for each run of this program.
2676 : It is substituted into a spec by %g or %j.
2677 : Thus, all temp file names contain this prefix.
2678 : In practice, all temp file names start with this prefix.
2679 :
2680 : This prefix comes from the envvar TMPDIR if it is defined;
2681 : otherwise, from the P_tmpdir macro if that is defined;
2682 : otherwise, in /usr/tmp or /tmp;
2683 : or finally the current directory if all else fails. */
2684 :
2685 : static const char *temp_filename;
2686 :
2687 : /* Length of the prefix. */
2688 :
2689 : static int temp_filename_length;
2690 :
2691 : /* Define the list of temporary files to delete. */
2692 :
2693 : struct temp_file
2694 : {
2695 : const char *name;
2696 : struct temp_file *next;
2697 : };
2698 :
2699 : /* Queue of files to delete on success or failure of compilation. */
2700 : static struct temp_file *always_delete_queue;
2701 : /* Queue of files to delete on failure of compilation. */
2702 : static struct temp_file *failure_delete_queue;
2703 :
2704 : /* Record FILENAME as a file to be deleted automatically.
2705 : ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
2706 : otherwise delete it in any case.
2707 : FAIL_DELETE nonzero means delete it if a compilation step fails;
2708 : otherwise delete it in any case. */
2709 :
2710 : void
2711 930767 : record_temp_file (const char *filename, int always_delete, int fail_delete)
2712 : {
2713 930767 : char *const name = xstrdup (filename);
2714 :
2715 930767 : if (always_delete)
2716 : {
2717 749529 : struct temp_file *temp;
2718 1898489 : for (temp = always_delete_queue; temp; temp = temp->next)
2719 1319686 : if (! filename_cmp (name, temp->name))
2720 : {
2721 170726 : free (name);
2722 170726 : goto already1;
2723 : }
2724 :
2725 578803 : temp = XNEW (struct temp_file);
2726 578803 : temp->next = always_delete_queue;
2727 578803 : temp->name = name;
2728 578803 : always_delete_queue = temp;
2729 :
2730 930767 : already1:;
2731 : }
2732 :
2733 930767 : if (fail_delete)
2734 : {
2735 494884 : struct temp_file *temp;
2736 695795 : for (temp = failure_delete_queue; temp; temp = temp->next)
2737 201000 : if (! filename_cmp (name, temp->name))
2738 : {
2739 89 : free (name);
2740 89 : goto already2;
2741 : }
2742 :
2743 494795 : temp = XNEW (struct temp_file);
2744 494795 : temp->next = failure_delete_queue;
2745 494795 : temp->name = name;
2746 494795 : failure_delete_queue = temp;
2747 :
2748 930767 : already2:;
2749 : }
2750 930767 : }
2751 :
2752 : /* Delete all the temporary files whose names we previously recorded. */
2753 :
2754 : #ifndef DELETE_IF_ORDINARY
2755 : #define DELETE_IF_ORDINARY(NAME,ST,VERBOSE_FLAG) \
2756 : do \
2757 : { \
2758 : if (stat (NAME, &ST) >= 0 && S_ISREG (ST.st_mode)) \
2759 : if (unlink (NAME) < 0) \
2760 : if (VERBOSE_FLAG) \
2761 : error ("%s: %m", (NAME)); \
2762 : } while (0)
2763 : #endif
2764 :
2765 : static void
2766 605457 : delete_if_ordinary (const char *name)
2767 : {
2768 605457 : struct stat st;
2769 : #ifdef DEBUG
2770 : int i, c;
2771 :
2772 : printf ("Delete %s? (y or n) ", name);
2773 : fflush (stdout);
2774 : i = getchar ();
2775 : if (i != '\n')
2776 : while ((c = getchar ()) != '\n' && c != EOF)
2777 : ;
2778 :
2779 : if (i == 'y' || i == 'Y')
2780 : #endif /* DEBUG */
2781 605457 : DELETE_IF_ORDINARY (name, st, verbose_flag);
2782 605457 : }
2783 :
2784 : static void
2785 606069 : delete_temp_files (void)
2786 : {
2787 606069 : struct temp_file *temp;
2788 :
2789 1184872 : for (temp = always_delete_queue; temp; temp = temp->next)
2790 578803 : delete_if_ordinary (temp->name);
2791 606069 : always_delete_queue = 0;
2792 606069 : }
2793 :
2794 : /* Delete all the files to be deleted on error. */
2795 :
2796 : static void
2797 60941 : delete_failure_queue (void)
2798 : {
2799 60941 : struct temp_file *temp;
2800 :
2801 87595 : for (temp = failure_delete_queue; temp; temp = temp->next)
2802 26654 : delete_if_ordinary (temp->name);
2803 60941 : }
2804 :
2805 : static void
2806 559812 : clear_failure_queue (void)
2807 : {
2808 559812 : failure_delete_queue = 0;
2809 559812 : }
2810 :
2811 : /* Call CALLBACK for each path in PATHS, breaking out early if CALLBACK
2812 : returns non-NULL.
2813 : If DO_MULTI is true iterate over the paths twice, first with multilib
2814 : suffix then without, otherwise iterate over the paths once without
2815 : adding a multilib suffix. When DO_MULTI is true, some attempt is made
2816 : to avoid visiting the same path twice, but we could do better. For
2817 : instance, /usr/lib/../lib is considered different from /usr/lib.
2818 : At least EXTRA_SPACE chars past the end of the path passed to
2819 : CALLBACK are available for use by the callback.
2820 : CALLBACK_INFO allows extra parameters to be passed to CALLBACK.
2821 :
2822 : Returns the value returned by CALLBACK. */
2823 :
2824 : template<typename fun>
2825 : auto *
2826 2931991 : for_each_path (const struct path_prefix *paths,
2827 : bool do_multi,
2828 : size_t extra_space,
2829 : fun && callback)
2830 : {
2831 : struct prefix_list *pl;
2832 2931991 : const char *multi_dir = NULL;
2833 2931991 : const char *multi_os_dir = NULL;
2834 2931991 : const char *multiarch_suffix = NULL;
2835 : const char *multi_suffix;
2836 : const char *just_multi_suffix;
2837 2931991 : char *path = NULL;
2838 2931991 : decltype (callback (nullptr, false)) ret = nullptr;
2839 2931991 : bool skip_multi_dir = false;
2840 2931991 : bool skip_multi_os_dir = false;
2841 :
2842 2931991 : multi_suffix = machine_suffix;
2843 2931991 : just_multi_suffix = just_machine_suffix;
2844 2931991 : if (do_multi && multilib_dir && strcmp (multilib_dir, ".") != 0)
2845 : {
2846 15853 : multi_dir = concat (multilib_dir, dir_separator_str, NULL);
2847 15853 : multi_suffix = concat (multi_suffix, multi_dir, NULL);
2848 15853 : just_multi_suffix = concat (just_multi_suffix, multi_dir, NULL);
2849 : }
2850 1274316 : if (do_multi && multilib_os_dir && strcmp (multilib_os_dir, ".") != 0)
2851 962598 : multi_os_dir = concat (multilib_os_dir, dir_separator_str, NULL);
2852 2931991 : if (multiarch_dir)
2853 0 : multiarch_suffix = concat (multiarch_dir, dir_separator_str, NULL);
2854 :
2855 : while (1)
2856 : {
2857 3369141 : size_t multi_dir_len = 0;
2858 3369141 : size_t multi_os_dir_len = 0;
2859 3369141 : size_t multiarch_len = 0;
2860 : size_t suffix_len;
2861 : size_t just_suffix_len;
2862 : size_t len;
2863 :
2864 3369141 : if (multi_dir)
2865 15853 : multi_dir_len = strlen (multi_dir);
2866 3369141 : if (multi_os_dir)
2867 962598 : multi_os_dir_len = strlen (multi_os_dir);
2868 3369141 : if (multiarch_suffix)
2869 0 : multiarch_len = strlen (multiarch_suffix);
2870 3369141 : suffix_len = strlen (multi_suffix);
2871 3369141 : just_suffix_len = strlen (just_multi_suffix);
2872 :
2873 3369141 : if (path == NULL)
2874 : {
2875 2931991 : len = paths->max_len + extra_space + 1;
2876 2931991 : len += MAX (MAX (suffix_len, multi_os_dir_len), multiarch_len);
2877 2931991 : path = XNEWVEC (char, len);
2878 : }
2879 :
2880 13161762 : for (pl = paths->plist; pl != 0; pl = pl->next)
2881 : {
2882 11525878 : len = strlen (pl->prefix);
2883 11525878 : memcpy (path, pl->prefix, len);
2884 :
2885 : /* Look first in MACHINE/VERSION subdirectory. */
2886 11525878 : if (!skip_multi_dir)
2887 : {
2888 8427269 : memcpy (path + len, multi_suffix, suffix_len + 1);
2889 8427269 : ret = callback (path, true);
2890 5415431 : if (ret)
2891 : break;
2892 : }
2893 :
2894 : /* Some paths are tried with just the machine (ie. target)
2895 : subdir. This is used for finding as, ld, etc. */
2896 : if (!skip_multi_dir
2897 8427269 : && pl->require_machine_suffix == 2)
2898 : {
2899 0 : memcpy (path + len, just_multi_suffix, just_suffix_len + 1);
2900 0 : ret = callback (path, true);
2901 0 : if (ret)
2902 : break;
2903 : }
2904 :
2905 : /* Now try the multiarch path. */
2906 : if (!skip_multi_dir
2907 8427269 : && !pl->require_machine_suffix && multiarch_dir)
2908 : {
2909 0 : memcpy (path + len, multiarch_suffix, multiarch_len + 1);
2910 0 : ret = callback (path, true);
2911 0 : if (ret)
2912 : break;
2913 : }
2914 :
2915 : /* Now try the base path. */
2916 11525878 : if (!pl->require_machine_suffix
2917 18318446 : && !(pl->os_multilib ? skip_multi_os_dir : skip_multi_dir))
2918 : {
2919 : const char *this_multi;
2920 : size_t this_multi_len;
2921 :
2922 10307704 : if (pl->os_multilib)
2923 : {
2924 : this_multi = multi_os_dir;
2925 : this_multi_len = multi_os_dir_len;
2926 : }
2927 : else
2928 : {
2929 5574394 : this_multi = multi_dir;
2930 5574394 : this_multi_len = multi_dir_len;
2931 : }
2932 :
2933 10307704 : if (this_multi_len)
2934 2873123 : memcpy (path + len, this_multi, this_multi_len + 1);
2935 : else
2936 7434581 : path[len] = '\0';
2937 :
2938 10307704 : ret = callback (path, false);
2939 6093975 : if (ret)
2940 : break;
2941 : }
2942 : }
2943 2579787 : if (pl)
2944 : break;
2945 :
2946 1635884 : if (multi_dir == NULL && multi_os_dir == NULL)
2947 : break;
2948 :
2949 : /* Run through the paths again, this time without multilibs.
2950 : Don't repeat any we have already seen. */
2951 437150 : if (multi_dir)
2952 : {
2953 10156 : free (const_cast<char *> (multi_dir));
2954 10156 : multi_dir = NULL;
2955 10156 : free (const_cast<char *> (multi_suffix));
2956 10156 : multi_suffix = machine_suffix;
2957 10156 : free (const_cast<char *> (just_multi_suffix));
2958 10156 : just_multi_suffix = just_machine_suffix;
2959 : }
2960 : else
2961 : skip_multi_dir = true;
2962 437150 : if (multi_os_dir)
2963 : {
2964 437150 : free (const_cast<char *> (multi_os_dir));
2965 437150 : multi_os_dir = NULL;
2966 : }
2967 : else
2968 : skip_multi_os_dir = true;
2969 : }
2970 :
2971 2931991 : if (multi_dir)
2972 : {
2973 5697 : free (const_cast<char *> (multi_dir));
2974 5697 : free (const_cast<char *> (multi_suffix));
2975 5697 : free (const_cast<char *> (just_multi_suffix));
2976 : }
2977 2931991 : if (multi_os_dir)
2978 525448 : free (const_cast<char *> (multi_os_dir));
2979 2405755 : if (ret != path)
2980 1198734 : free (path);
2981 2931991 : return ret;
2982 : }
2983 :
2984 : /* Add or change the value of an environment variable, outputting the
2985 : change to standard error if in verbose mode. */
2986 : static void
2987 1832069 : xputenv (const char *string)
2988 : {
2989 0 : env.xput (string);
2990 142665 : }
2991 :
2992 : /* Build a list of search directories from PATHS.
2993 : PREFIX is a string to prepend to the list.
2994 : If CHECK_DIR_P is true we ensure the directory exists.
2995 : If DO_MULTI is true, multilib paths are output first, then
2996 : non-multilib paths.
2997 : This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
2998 : It is also used by the --print-search-dirs flag. */
2999 :
3000 : static char *
3001 526236 : build_search_list (const struct path_prefix *paths, const char *prefix,
3002 : bool check_dir, bool do_multi)
3003 : {
3004 526236 : struct obstack *const ob = &collect_obstack;
3005 526236 : bool first_time = true;
3006 :
3007 526236 : obstack_grow (&collect_obstack, prefix, strlen (prefix));
3008 526236 : obstack_1grow (&collect_obstack, '=');
3009 :
3010 : /* Callback adds path to obstack being built. */
3011 526236 : for_each_path (paths, do_multi, 0, [&](char *path, bool) -> void*
3012 : {
3013 7225567 : if (check_dir && !is_directory (path))
3014 : return NULL;
3015 :
3016 2668735 : if (!first_time)
3017 2143643 : obstack_1grow (ob, PATH_SEPARATOR);
3018 :
3019 2668735 : obstack_grow (ob, path, strlen (path));
3020 :
3021 2668735 : first_time = false;
3022 2668735 : return NULL;
3023 : });
3024 :
3025 526236 : obstack_1grow (&collect_obstack, '\0');
3026 526236 : return XOBFINISH (&collect_obstack, char *);
3027 : }
3028 :
3029 : /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
3030 : for collect. */
3031 :
3032 : static void
3033 526180 : putenv_from_prefixes (const struct path_prefix *paths, const char *env_var,
3034 : bool do_multi)
3035 : {
3036 526180 : xputenv (build_search_list (paths, env_var, true, do_multi));
3037 526180 : }
3038 :
3039 : /* Check whether NAME can be accessed in MODE. This is like access,
3040 : except that it never considers directories to be executable. */
3041 :
3042 : static int
3043 8866700 : access_check (const char *name, int mode)
3044 : {
3045 2351046 : if (mode == X_OK)
3046 : {
3047 2351046 : struct stat st;
3048 :
3049 2351046 : if (stat (name, &st) < 0
3050 2351046 : || S_ISDIR (st.st_mode))
3051 1580391 : return -1;
3052 : }
3053 :
3054 770655 : return access (name, mode);
3055 : }
3056 :
3057 :
3058 : /* Search for NAME using the prefix list PREFIXES. MODE is passed to
3059 : access to check permissions. If DO_MULTI is true, search multilib
3060 : paths then non-multilib paths, otherwise do not search multilib paths.
3061 : Return 0 if not found, otherwise return its name, allocated with malloc. */
3062 :
3063 : static char *
3064 1059103 : find_a_file (const struct path_prefix *pprefix, const char *name,
3065 : bool do_multi)
3066 : {
3067 : /* Find the filename in question (special case for absolute paths). */
3068 :
3069 1059103 : if (IS_ABSOLUTE_PATH (name))
3070 : {
3071 1 : if (access (name, R_OK) == 0)
3072 1 : return xstrdup (name);
3073 :
3074 : return NULL;
3075 : }
3076 :
3077 1059102 : const int name_len = strlen (name);
3078 :
3079 :
3080 : /* Callback appends the file name to the directory path. If the
3081 : resulting file exists in the right mode, return the full pathname
3082 : to the file. */
3083 1059102 : return for_each_path (pprefix, do_multi,
3084 : name_len,
3085 1059102 : [=](char *path, bool) -> char*
3086 : {
3087 6515654 : memcpy (path + strlen (path), name, name_len + 1);
3088 :
3089 6515654 : if (access_check (path, R_OK) == 0)
3090 962602 : return path;
3091 :
3092 : return NULL;
3093 : });
3094 : }
3095 :
3096 : /* Specialization of find_a_file for programs that also takes into account
3097 : configure-specified default programs. */
3098 :
3099 : static char*
3100 776857 : find_a_program (const char *name)
3101 : {
3102 : /* Do not search if default matches query. */
3103 :
3104 : #ifdef DEFAULT_ASSEMBLER
3105 : if (! strcmp (name, "as") && access (DEFAULT_ASSEMBLER, X_OK) == 0)
3106 : return xstrdup (DEFAULT_ASSEMBLER);
3107 : #endif
3108 :
3109 : #ifdef DEFAULT_LINKER
3110 : if (! strcmp (name, "ld") && access (DEFAULT_LINKER, X_OK) == 0)
3111 : return xstrdup (DEFAULT_LINKER);
3112 : #endif
3113 :
3114 : #ifdef DEFAULT_DSYMUTIL
3115 : if (! strcmp (name, "dsymutil") && access (DEFAULT_DSYMUTIL, X_OK) == 0)
3116 : return xstrdup (DEFAULT_DSYMUTIL);
3117 : #endif
3118 :
3119 : #ifdef DEFAULT_WINDRES
3120 : if (! strcmp (name, "windres") && access (DEFAULT_WINDRES, X_OK) == 0)
3121 : return xstrdup (DEFAULT_WINDRES);
3122 : #endif
3123 :
3124 : /* Find the filename in question (special case for absolute paths). */
3125 :
3126 776857 : if (IS_ABSOLUTE_PATH (name))
3127 : {
3128 0 : if (access (name, X_OK) == 0)
3129 0 : return xstrdup (name);
3130 :
3131 : return NULL;
3132 : }
3133 :
3134 776857 : const char *suffix = HOST_EXECUTABLE_SUFFIX;
3135 776857 : const int name_len = strlen (name);
3136 776857 : const int prefix_len = strlen (just_machine_prefix);
3137 776857 : const int suffix_len = strlen (suffix);
3138 :
3139 : /* Callback appends the file name to the directory path. If the
3140 : resulting file exists in the right mode, return the full pathname
3141 : to the file. */
3142 776857 : return for_each_path (&exec_prefixes, false,
3143 776857 : prefix_len + name_len + suffix_len,
3144 776857 : [=](char *path, bool machine_specific) -> char*
3145 : {
3146 1567364 : size_t path_len = strlen (path);
3147 :
3148 3918410 : auto search = [=](size_t len) -> char*
3149 : {
3150 2351046 : memcpy (path + len, name, name_len + 1);
3151 2351046 : len += name_len;
3152 :
3153 : /* Some systems have a suffix for executable files.
3154 : So try appending that first. */
3155 2351046 : if (suffix_len)
3156 : {
3157 0 : memcpy (path + len, suffix, suffix_len + 1);
3158 0 : if (access_check (path, X_OK) == 0)
3159 0 : return path;
3160 : }
3161 :
3162 2351046 : path[len] = '\0';
3163 2351046 : if (access_check (path, X_OK) == 0)
3164 770655 : return path;
3165 :
3166 : return NULL;
3167 1567364 : };
3168 :
3169 : /* Additionally search for $target-prog in machine-agnostic dirs,
3170 : as an additional way to disambiguate targets. Do not do this in
3171 : machine-specific dirs because so further disambiguation is
3172 : needed. */
3173 1567364 : if (!machine_specific)
3174 : {
3175 783682 : memcpy (path + path_len, just_machine_prefix, prefix_len);
3176 783682 : auto ret = search(path_len + prefix_len);
3177 783682 : if (ret)
3178 : return ret;
3179 : }
3180 :
3181 1567364 : return search(path_len);
3182 : });
3183 : }
3184 :
3185 : /* Ranking of prefixes in the sort list. -B prefixes are put before
3186 : all others. */
3187 :
3188 : enum path_prefix_priority
3189 : {
3190 : PREFIX_PRIORITY_B_OPT,
3191 : PREFIX_PRIORITY_LAST
3192 : };
3193 :
3194 : /* Add an entry for PREFIX in PLIST. The PLIST is kept in ascending
3195 : order according to PRIORITY. Within each PRIORITY, new entries are
3196 : appended.
3197 :
3198 : If WARN is nonzero, we will warn if no file is found
3199 : through this prefix. WARN should point to an int
3200 : which will be set to 1 if this entry is used.
3201 :
3202 : COMPONENT is the value to be passed to update_path.
3203 :
3204 : REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
3205 : the complete value of machine_suffix.
3206 : 2 means try both machine_suffix and just_machine_suffix. */
3207 :
3208 : static void
3209 4050902 : add_prefix (struct path_prefix *pprefix, const char *prefix,
3210 : const char *component, /* enum prefix_priority */ int priority,
3211 : int require_machine_suffix, int os_multilib)
3212 : {
3213 4050902 : struct prefix_list *pl, **prev;
3214 4050902 : int len;
3215 :
3216 4050902 : for (prev = &pprefix->plist;
3217 12823102 : (*prev) != NULL && (*prev)->priority <= priority;
3218 8772200 : prev = &(*prev)->next)
3219 : ;
3220 :
3221 : /* Keep track of the longest prefix. */
3222 :
3223 4050902 : prefix = update_path (prefix, component);
3224 4050902 : len = strlen (prefix);
3225 4050902 : if (len > pprefix->max_len)
3226 2201984 : pprefix->max_len = len;
3227 :
3228 4050902 : pl = XNEW (struct prefix_list);
3229 4050902 : pl->prefix = prefix;
3230 4050902 : pl->require_machine_suffix = require_machine_suffix;
3231 4050902 : pl->priority = priority;
3232 4050902 : pl->os_multilib = os_multilib;
3233 :
3234 : /* Insert after PREV. */
3235 4050902 : pl->next = (*prev);
3236 4050902 : (*prev) = pl;
3237 4050902 : }
3238 :
3239 : /* Same as add_prefix, but prepending target_system_root to prefix. */
3240 : /* The target_system_root prefix has been relocated by gcc_exec_prefix. */
3241 : static void
3242 623432 : add_sysrooted_prefix (struct path_prefix *pprefix, const char *prefix,
3243 : const char *component,
3244 : /* enum prefix_priority */ int priority,
3245 : int require_machine_suffix, int os_multilib)
3246 : {
3247 623432 : if (!IS_ABSOLUTE_PATH (prefix))
3248 0 : fatal_error (input_location, "system path %qs is not absolute", prefix);
3249 :
3250 623432 : if (target_system_root)
3251 : {
3252 0 : char *sysroot_no_trailing_dir_separator = xstrdup (target_system_root);
3253 0 : size_t sysroot_len = strlen (target_system_root);
3254 :
3255 0 : if (sysroot_len > 0
3256 0 : && target_system_root[sysroot_len - 1] == DIR_SEPARATOR)
3257 0 : sysroot_no_trailing_dir_separator[sysroot_len - 1] = '\0';
3258 :
3259 0 : if (target_sysroot_suffix)
3260 0 : prefix = concat (sysroot_no_trailing_dir_separator,
3261 : target_sysroot_suffix, prefix, NULL);
3262 : else
3263 0 : prefix = concat (sysroot_no_trailing_dir_separator, prefix, NULL);
3264 :
3265 0 : free (sysroot_no_trailing_dir_separator);
3266 :
3267 : /* We have to override this because GCC's notion of sysroot
3268 : moves along with GCC. */
3269 0 : component = "GCC";
3270 : }
3271 :
3272 623432 : add_prefix (pprefix, prefix, component, priority,
3273 : require_machine_suffix, os_multilib);
3274 623432 : }
3275 :
3276 : /* Same as add_prefix, but prepending target_sysroot_hdrs_suffix to prefix. */
3277 :
3278 : static void
3279 31763 : add_sysrooted_hdrs_prefix (struct path_prefix *pprefix, const char *prefix,
3280 : const char *component,
3281 : /* enum prefix_priority */ int priority,
3282 : int require_machine_suffix, int os_multilib)
3283 : {
3284 31763 : if (!IS_ABSOLUTE_PATH (prefix))
3285 0 : fatal_error (input_location, "system path %qs is not absolute", prefix);
3286 :
3287 31763 : if (target_system_root)
3288 : {
3289 0 : char *sysroot_no_trailing_dir_separator = xstrdup (target_system_root);
3290 0 : size_t sysroot_len = strlen (target_system_root);
3291 :
3292 0 : if (sysroot_len > 0
3293 0 : && target_system_root[sysroot_len - 1] == DIR_SEPARATOR)
3294 0 : sysroot_no_trailing_dir_separator[sysroot_len - 1] = '\0';
3295 :
3296 0 : if (target_sysroot_hdrs_suffix)
3297 0 : prefix = concat (sysroot_no_trailing_dir_separator,
3298 : target_sysroot_hdrs_suffix, prefix, NULL);
3299 : else
3300 0 : prefix = concat (sysroot_no_trailing_dir_separator, prefix, NULL);
3301 :
3302 0 : free (sysroot_no_trailing_dir_separator);
3303 :
3304 : /* We have to override this because GCC's notion of sysroot
3305 : moves along with GCC. */
3306 0 : component = "GCC";
3307 : }
3308 :
3309 31763 : add_prefix (pprefix, prefix, component, priority,
3310 : require_machine_suffix, os_multilib);
3311 31763 : }
3312 :
3313 :
3314 : /* Execute the command specified by the arguments on the current line of spec.
3315 : When using pipes, this includes several piped-together commands
3316 : with `|' between them.
3317 :
3318 : Return 0 if successful, -1 if failed. */
3319 :
3320 : static int
3321 563056 : execute (void)
3322 : {
3323 563056 : int i;
3324 563056 : int n_commands; /* # of command. */
3325 563056 : char *string;
3326 563056 : struct pex_obj *pex;
3327 563056 : struct command
3328 : {
3329 : const char *prog; /* program name. */
3330 : const char **argv; /* vector of args. */
3331 : };
3332 563056 : const char *arg;
3333 :
3334 563056 : struct command *commands; /* each command buffer with above info. */
3335 :
3336 563056 : gcc_assert (!processing_spec_function);
3337 :
3338 563056 : if (wrapper_string)
3339 : {
3340 0 : string = find_a_program (argbuf[0]);
3341 0 : if (string)
3342 0 : argbuf[0] = string;
3343 0 : insert_wrapper (wrapper_string);
3344 : }
3345 :
3346 : /* Count # of piped commands. */
3347 17238921 : for (n_commands = 1, i = 0; argbuf.iterate (i, &arg); i++)
3348 16675865 : if (strcmp (arg, "|") == 0)
3349 0 : n_commands++;
3350 :
3351 : /* Get storage for each command. */
3352 563056 : commands = XALLOCAVEC (struct command, n_commands);
3353 :
3354 : /* Split argbuf into its separate piped processes,
3355 : and record info about each one.
3356 : Also search for the programs that are to be run. */
3357 :
3358 563056 : argbuf.safe_push (0);
3359 :
3360 563056 : commands[0].prog = argbuf[0]; /* first command. */
3361 563056 : commands[0].argv = argbuf.address ();
3362 :
3363 563056 : if (!wrapper_string)
3364 : {
3365 563056 : string = find_a_program(commands[0].prog);
3366 563056 : if (string)
3367 560401 : commands[0].argv[0] = string;
3368 : }
3369 :
3370 17801977 : for (n_commands = 1, i = 0; argbuf.iterate (i, &arg); i++)
3371 17238921 : if (arg && strcmp (arg, "|") == 0)
3372 : { /* each command. */
3373 : #if defined (__MSDOS__) || defined (OS2) || defined (VMS)
3374 : fatal_error (input_location, "%<-pipe%> not supported");
3375 : #endif
3376 0 : argbuf[i] = 0; /* Termination of command args. */
3377 0 : commands[n_commands].prog = argbuf[i + 1];
3378 0 : commands[n_commands].argv
3379 0 : = &(argbuf.address ())[i + 1];
3380 0 : string = find_a_program(commands[n_commands].prog);
3381 0 : if (string)
3382 0 : commands[n_commands].argv[0] = string;
3383 0 : n_commands++;
3384 : }
3385 :
3386 : /* If -v, print what we are about to do, and maybe query. */
3387 :
3388 563056 : if (verbose_flag)
3389 : {
3390 : /* For help listings, put a blank line between sub-processes. */
3391 1522 : if (print_help_list)
3392 9 : fputc ('\n', stderr);
3393 :
3394 : /* Print each piped command as a separate line. */
3395 3044 : for (i = 0; i < n_commands; i++)
3396 : {
3397 1522 : const char *const *j;
3398 :
3399 1522 : if (verbose_only_flag)
3400 : {
3401 17904 : for (j = commands[i].argv; *j; j++)
3402 : {
3403 : const char *p;
3404 427623 : for (p = *j; *p; ++p)
3405 413226 : if (!ISALNUM ((unsigned char) *p)
3406 97811 : && *p != '_' && *p != '/' && *p != '-' && *p != '.')
3407 : break;
3408 16887 : if (*p || !*j)
3409 : {
3410 2490 : fprintf (stderr, " \"");
3411 129656 : for (p = *j; *p; ++p)
3412 : {
3413 127166 : if (*p == '"' || *p == '\\' || *p == '$')
3414 0 : fputc ('\\', stderr);
3415 127166 : fputc (*p, stderr);
3416 : }
3417 2490 : fputc ('"', stderr);
3418 : }
3419 : /* If it's empty, print "". */
3420 14397 : else if (!**j)
3421 0 : fprintf (stderr, " \"\"");
3422 : else
3423 14397 : fprintf (stderr, " %s", *j);
3424 : }
3425 : }
3426 : else
3427 18415 : for (j = commands[i].argv; *j; j++)
3428 : /* If it's empty, print "". */
3429 17910 : if (!**j)
3430 0 : fprintf (stderr, " \"\"");
3431 : else
3432 17910 : fprintf (stderr, " %s", *j);
3433 :
3434 : /* Print a pipe symbol after all but the last command. */
3435 1522 : if (i + 1 != n_commands)
3436 0 : fprintf (stderr, " |");
3437 1522 : fprintf (stderr, "\n");
3438 : }
3439 1522 : fflush (stderr);
3440 1522 : if (verbose_only_flag != 0)
3441 : {
3442 : /* verbose_only_flag should act as if the spec was
3443 : executed, so increment execution_count before
3444 : returning. This prevents spurious warnings about
3445 : unused linker input files, etc. */
3446 1017 : execution_count++;
3447 1017 : return 0;
3448 : }
3449 : #ifdef DEBUG
3450 : fnotice (stderr, "\nGo ahead? (y or n) ");
3451 : fflush (stderr);
3452 : i = getchar ();
3453 : if (i != '\n')
3454 : while (getchar () != '\n')
3455 : ;
3456 :
3457 : if (i != 'y' && i != 'Y')
3458 : return 0;
3459 : #endif /* DEBUG */
3460 : }
3461 :
3462 : #ifdef ENABLE_VALGRIND_CHECKING
3463 : /* Run the each command through valgrind. To simplify prepending the
3464 : path to valgrind and the option "-q" (for quiet operation unless
3465 : something triggers), we allocate a separate argv array. */
3466 :
3467 : for (i = 0; i < n_commands; i++)
3468 : {
3469 : const char **argv;
3470 : int argc;
3471 : int j;
3472 :
3473 : for (argc = 0; commands[i].argv[argc] != NULL; argc++)
3474 : ;
3475 :
3476 : argv = XALLOCAVEC (const char *, argc + 3);
3477 :
3478 : argv[0] = VALGRIND_PATH;
3479 : argv[1] = "-q";
3480 : for (j = 2; j < argc + 2; j++)
3481 : argv[j] = commands[i].argv[j - 2];
3482 : argv[j] = NULL;
3483 :
3484 : commands[i].argv = argv;
3485 : commands[i].prog = argv[0];
3486 : }
3487 : #endif
3488 :
3489 : /* Run each piped subprocess. */
3490 :
3491 562039 : pex = pex_init (PEX_USE_PIPES | ((report_times || report_times_to_file)
3492 : ? PEX_RECORD_TIMES : 0),
3493 : progname, temp_filename);
3494 562039 : if (pex == NULL)
3495 : fatal_error (input_location, "%<pex_init%> failed: %m");
3496 :
3497 1124078 : for (i = 0; i < n_commands; i++)
3498 : {
3499 562039 : const char *errmsg;
3500 562039 : int err;
3501 562039 : const char *string = commands[i].argv[0];
3502 :
3503 562039 : errmsg = pex_run (pex,
3504 562039 : ((i + 1 == n_commands ? PEX_LAST : 0)
3505 562039 : | (string == commands[i].prog ? PEX_SEARCH : 0)),
3506 : string, const_cast<char **> (commands[i].argv),
3507 : NULL, NULL, &err);
3508 562039 : if (errmsg != NULL)
3509 : {
3510 0 : errno = err;
3511 0 : fatal_error (input_location,
3512 : err ? G_("cannot execute %qs: %s: %m")
3513 : : G_("cannot execute %qs: %s"),
3514 : string, errmsg);
3515 : }
3516 :
3517 562039 : if (i && string != commands[i].prog)
3518 0 : free (const_cast<char *> (string));
3519 : }
3520 :
3521 562039 : execution_count++;
3522 :
3523 : /* Wait for all the subprocesses to finish. */
3524 :
3525 562039 : {
3526 562039 : int *statuses;
3527 562039 : struct pex_time *times = NULL;
3528 562039 : int ret_code = 0;
3529 :
3530 562039 : statuses = XALLOCAVEC (int, n_commands);
3531 562039 : if (!pex_get_status (pex, n_commands, statuses))
3532 0 : fatal_error (input_location, "failed to get exit status: %m");
3533 :
3534 562039 : if (report_times || report_times_to_file)
3535 : {
3536 0 : times = XALLOCAVEC (struct pex_time, n_commands);
3537 0 : if (!pex_get_times (pex, n_commands, times))
3538 0 : fatal_error (input_location, "failed to get process times: %m");
3539 : }
3540 :
3541 562039 : pex_free (pex);
3542 :
3543 1124078 : for (i = 0; i < n_commands; ++i)
3544 : {
3545 562039 : int status = statuses[i];
3546 :
3547 562039 : if (WIFSIGNALED (status))
3548 0 : switch (WTERMSIG (status))
3549 : {
3550 0 : case SIGINT:
3551 0 : case SIGTERM:
3552 : /* SIGQUIT and SIGKILL are not available on MinGW. */
3553 : #ifdef SIGQUIT
3554 0 : case SIGQUIT:
3555 : #endif
3556 : #ifdef SIGKILL
3557 0 : case SIGKILL:
3558 : #endif
3559 : /* The user (or environment) did something to the
3560 : inferior. Making this an ICE confuses the user into
3561 : thinking there's a compiler bug. Much more likely is
3562 : the user or OOM killer nuked it. */
3563 0 : fatal_error (input_location,
3564 : "%s signal terminated program %s",
3565 : strsignal (WTERMSIG (status)),
3566 0 : commands[i].prog);
3567 0 : break;
3568 :
3569 : #ifdef SIGPIPE
3570 0 : case SIGPIPE:
3571 : /* SIGPIPE is a special case. It happens in -pipe mode
3572 : when the compiler dies before the preprocessor is
3573 : done, or the assembler dies before the compiler is
3574 : done. There's generally been an error already, and
3575 : this is just fallout. So don't generate another
3576 : error unless we would otherwise have succeeded. */
3577 0 : if (signal_count || greatest_status >= MIN_FATAL_STATUS)
3578 : {
3579 0 : signal_count++;
3580 0 : ret_code = -1;
3581 0 : break;
3582 : }
3583 : #endif
3584 : /* FALLTHROUGH */
3585 :
3586 0 : default:
3587 : /* The inferior failed to catch the signal. */
3588 0 : internal_error_no_backtrace ("%s signal terminated program %s",
3589 : strsignal (WTERMSIG (status)),
3590 0 : commands[i].prog);
3591 : }
3592 562039 : else if (WIFEXITED (status)
3593 562039 : && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
3594 : {
3595 : /* For ICEs in cc1, cc1obj, cc1plus see if it is
3596 : reproducible or not. */
3597 30522 : const char *p;
3598 30522 : if (flag_report_bug
3599 0 : && WEXITSTATUS (status) == ICE_EXIT_CODE
3600 0 : && i == 0
3601 0 : && (p = strrchr (commands[0].argv[0], DIR_SEPARATOR))
3602 30522 : && startswith (p + 1, "cc1"))
3603 0 : try_generate_repro (commands[0].argv);
3604 30522 : if (WEXITSTATUS (status) > greatest_status)
3605 23 : greatest_status = WEXITSTATUS (status);
3606 : ret_code = -1;
3607 : }
3608 :
3609 562039 : if (report_times || report_times_to_file)
3610 : {
3611 0 : struct pex_time *pt = ×[i];
3612 0 : double ut, st;
3613 :
3614 0 : ut = ((double) pt->user_seconds
3615 0 : + (double) pt->user_microseconds / 1.0e6);
3616 0 : st = ((double) pt->system_seconds
3617 0 : + (double) pt->system_microseconds / 1.0e6);
3618 :
3619 0 : if (ut + st != 0)
3620 : {
3621 0 : if (report_times)
3622 0 : fnotice (stderr, "# %s %.2f %.2f\n",
3623 0 : commands[i].prog, ut, st);
3624 :
3625 0 : if (report_times_to_file)
3626 : {
3627 0 : int c = 0;
3628 0 : const char *const *j;
3629 :
3630 0 : fprintf (report_times_to_file, "%g %g", ut, st);
3631 :
3632 0 : for (j = &commands[i].prog; *j; j = &commands[i].argv[++c])
3633 : {
3634 : const char *p;
3635 0 : for (p = *j; *p; ++p)
3636 0 : if (*p == '"' || *p == '\\' || *p == '$'
3637 0 : || ISSPACE (*p))
3638 : break;
3639 :
3640 0 : if (*p)
3641 : {
3642 0 : fprintf (report_times_to_file, " \"");
3643 0 : for (p = *j; *p; ++p)
3644 : {
3645 0 : if (*p == '"' || *p == '\\' || *p == '$')
3646 0 : fputc ('\\', report_times_to_file);
3647 0 : fputc (*p, report_times_to_file);
3648 : }
3649 0 : fputc ('"', report_times_to_file);
3650 : }
3651 : else
3652 0 : fprintf (report_times_to_file, " %s", *j);
3653 : }
3654 :
3655 0 : fputc ('\n', report_times_to_file);
3656 : }
3657 : }
3658 : }
3659 : }
3660 :
3661 562039 : if (commands[0].argv[0] != commands[0].prog)
3662 559384 : free (const_cast<char *> (commands[0].argv[0]));
3663 :
3664 : return ret_code;
3665 : }
3666 : }
3667 :
3668 : static struct switchstr *switches;
3669 :
3670 : static int n_switches;
3671 :
3672 : static int n_switches_alloc;
3673 :
3674 : /* Set to zero if -fcompare-debug is disabled, positive if it's
3675 : enabled and we're running the first compilation, negative if it's
3676 : enabled and we're running the second compilation. For most of the
3677 : time, it's in the range -1..1, but it can be temporarily set to 2
3678 : or 3 to indicate that the -fcompare-debug flags didn't come from
3679 : the command-line, but rather from the GCC_COMPARE_DEBUG environment
3680 : variable, until a synthesized -fcompare-debug flag is added to the
3681 : command line. */
3682 : int compare_debug;
3683 :
3684 : /* Set to nonzero if we've seen the -fcompare-debug-second flag. */
3685 : int compare_debug_second;
3686 :
3687 : /* Set to the flags that should be passed to the second compilation in
3688 : a -fcompare-debug compilation. */
3689 : const char *compare_debug_opt;
3690 :
3691 : static struct switchstr *switches_debug_check[2];
3692 :
3693 : static int n_switches_debug_check[2];
3694 :
3695 : static int n_switches_alloc_debug_check[2];
3696 :
3697 : static char *debug_check_temp_file[2];
3698 :
3699 : /* Language is one of three things:
3700 :
3701 : 1) The name of a real programming language.
3702 : 2) NULL, indicating that no one has figured out
3703 : what it is yet.
3704 : 3) '*', indicating that the file should be passed
3705 : to the linker. */
3706 : struct infile
3707 : {
3708 : const char *name;
3709 : const char *language;
3710 : struct compiler *incompiler;
3711 : bool compiled;
3712 : bool preprocessed;
3713 : bool artificial;
3714 : };
3715 :
3716 : /* Also a vector of input files specified. */
3717 :
3718 : static struct infile *infiles;
3719 :
3720 : int n_infiles;
3721 :
3722 : static int n_infiles_alloc;
3723 :
3724 : /* True if undefined environment variables encountered during spec processing
3725 : are ok to ignore, typically when we're running for --help or --version. */
3726 :
3727 : static bool spec_undefvar_allowed;
3728 :
3729 : /* True if multiple input files are being compiled to a single
3730 : assembly file. */
3731 :
3732 : static bool combine_inputs;
3733 :
3734 : /* This counts the number of libraries added by lang_specific_driver, so that
3735 : we can tell if there were any user supplied any files or libraries. */
3736 :
3737 : static int added_libraries;
3738 :
3739 : /* And a vector of corresponding output files is made up later. */
3740 :
3741 : const char **outfiles;
3742 :
3743 : #if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3744 :
3745 : /* Convert NAME to a new name if it is the standard suffix. DO_EXE
3746 : is true if we should look for an executable suffix. DO_OBJ
3747 : is true if we should look for an object suffix. */
3748 :
3749 : static const char *
3750 : convert_filename (const char *name, int do_exe ATTRIBUTE_UNUSED,
3751 : int do_obj ATTRIBUTE_UNUSED)
3752 : {
3753 : #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3754 : int i;
3755 : #endif
3756 : int len;
3757 :
3758 : if (name == NULL)
3759 : return NULL;
3760 :
3761 : len = strlen (name);
3762 :
3763 : #ifdef HAVE_TARGET_OBJECT_SUFFIX
3764 : /* Convert x.o to x.obj if TARGET_OBJECT_SUFFIX is ".obj". */
3765 : if (do_obj && len > 2
3766 : && name[len - 2] == '.'
3767 : && name[len - 1] == 'o')
3768 : {
3769 : obstack_grow (&obstack, name, len - 2);
3770 : obstack_grow0 (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX));
3771 : name = XOBFINISH (&obstack, const char *);
3772 : }
3773 : #endif
3774 :
3775 : #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
3776 : /* If there is no filetype, make it the executable suffix (which includes
3777 : the "."). But don't get confused if we have just "-o". */
3778 : if (! do_exe || TARGET_EXECUTABLE_SUFFIX[0] == 0 || not_actual_file_p (name))
3779 : return name;
3780 :
3781 : for (i = len - 1; i >= 0; i--)
3782 : if (IS_DIR_SEPARATOR (name[i]))
3783 : break;
3784 :
3785 : for (i++; i < len; i++)
3786 : if (name[i] == '.')
3787 : return name;
3788 :
3789 : obstack_grow (&obstack, name, len);
3790 : obstack_grow0 (&obstack, TARGET_EXECUTABLE_SUFFIX,
3791 : strlen (TARGET_EXECUTABLE_SUFFIX));
3792 : name = XOBFINISH (&obstack, const char *);
3793 : #endif
3794 :
3795 : return name;
3796 : }
3797 : #endif
3798 :
3799 : /* Display the command line switches accepted by gcc. */
3800 : static void
3801 4 : display_help (void)
3802 : {
3803 4 : printf (_("Usage: %s [options] file...\n"), progname);
3804 4 : fputs (_("Options:\n"), stdout);
3805 :
3806 4 : fputs (_(" -pass-exit-codes Exit with highest error code from a phase.\n"), stdout);
3807 4 : fputs (_(" --help Display this information.\n"), stdout);
3808 4 : fputs (_(" --target-help Display target specific command line options "
3809 : "(including assembler and linker options).\n"), stdout);
3810 4 : fputs (_(" --help={common|optimizers|params|target|warnings|[^]{joined|separate|undocumented}}[,...].\n"), stdout);
3811 4 : fputs (_(" Display specific types of command line options.\n"), stdout);
3812 4 : if (! verbose_flag)
3813 1 : fputs (_(" (Use '-v --help' to display command line options of sub-processes).\n"), stdout);
3814 4 : fputs (_(" --version Display compiler version information.\n"), stdout);
3815 4 : fputs (_(" -dumpspecs Display all of the built in spec strings.\n"), stdout);
3816 4 : fputs (_(" -dumpversion Display the version of the compiler.\n"), stdout);
3817 4 : fputs (_(" -dumpmachine Display the compiler's target processor.\n"), stdout);
3818 4 : fputs (_(" -foffload=<targets> Specify offloading targets.\n"), stdout);
3819 4 : fputs (_(" -print-search-dirs Display the directories in the compiler's search path.\n"), stdout);
3820 4 : fputs (_(" -print-libgcc-file-name Display the name of the compiler's companion library.\n"), stdout);
3821 4 : fputs (_(" -print-file-name=<lib> Display the full path to library <lib>.\n"), stdout);
3822 4 : fputs (_(" -print-prog-name=<prog> Display the full path to compiler component <prog>.\n"), stdout);
3823 4 : fputs (_("\
3824 : -print-multiarch Display the target's normalized GNU triplet, used as\n\
3825 : a component in the library path.\n"), stdout);
3826 4 : fputs (_(" -print-multi-directory Display the root directory for versions of libgcc.\n"), stdout);
3827 4 : fputs (_("\
3828 : -print-multi-lib Display the mapping between command line options and\n\
3829 : multiple library search directories.\n"), stdout);
3830 4 : fputs (_(" -print-multi-os-directory Display the relative path to OS libraries.\n"), stdout);
3831 4 : fputs (_(" -print-sysroot Display the target libraries directory.\n"), stdout);
3832 4 : fputs (_(" -print-sysroot-headers-suffix Display the sysroot suffix used to find headers.\n"), stdout);
3833 4 : fputs (_(" -Wa,<options> Pass comma-separated <options> on to the assembler.\n"), stdout);
3834 4 : fputs (_(" -Wp,<options> Pass comma-separated <options> on to the preprocessor.\n"), stdout);
3835 4 : fputs (_(" -Wl,<options> Pass comma-separated <options> on to the linker.\n"), stdout);
3836 4 : fputs (_(" -Xassembler <arg> Pass <arg> on to the assembler.\n"), stdout);
3837 4 : fputs (_(" -Xpreprocessor <arg> Pass <arg> on to the preprocessor.\n"), stdout);
3838 4 : fputs (_(" -Xlinker <arg> Pass <arg> on to the linker.\n"), stdout);
3839 4 : fputs (_(" -save-temps Do not delete intermediate files.\n"), stdout);
3840 4 : fputs (_(" -save-temps=<arg> Do not delete intermediate files.\n"), stdout);
3841 4 : fputs (_("\
3842 : -no-canonical-prefixes Do not canonicalize paths when building relative\n\
3843 : prefixes to other gcc components.\n"), stdout);
3844 4 : fputs (_(" -pipe Use pipes rather than intermediate files.\n"), stdout);
3845 4 : fputs (_(" -time Time the execution of each subprocess.\n"), stdout);
3846 4 : fputs (_(" -specs=<file> Override built-in specs with the contents of <file>.\n"), stdout);
3847 4 : fputs (_(" -std=<standard> Assume that the input sources are for <standard>.\n"), stdout);
3848 4 : fputs (_("\
3849 : --sysroot=<directory> Use <directory> as the root directory for headers\n\
3850 : and libraries.\n"), stdout);
3851 4 : fputs (_(" -B <directory> Add <directory> to the compiler's search paths.\n"), stdout);
3852 4 : fputs (_(" -v Display the programs invoked by the compiler.\n"), stdout);
3853 4 : fputs (_(" -### Like -v but options quoted and commands not executed.\n"), stdout);
3854 4 : fputs (_(" -E Preprocess only; do not compile, assemble or link.\n"), stdout);
3855 4 : fputs (_(" -S Compile only; do not assemble or link.\n"), stdout);
3856 4 : fputs (_(" -c Compile and assemble, but do not link.\n"), stdout);
3857 4 : fputs (_(" -o <file> Place the output into <file>.\n"), stdout);
3858 4 : fputs (_(" -pie Create a dynamically linked position independent\n\
3859 : executable.\n"), stdout);
3860 4 : fputs (_(" -shared Create a shared library.\n"), stdout);
3861 4 : fputs (_("\
3862 : -x <language> Specify the language of the following input files.\n\
3863 : Permissible languages include: c c++ assembler none\n\
3864 : 'none' means revert to the default behavior of\n\
3865 : guessing the language based on the file's extension.\n\
3866 : "), stdout);
3867 :
3868 4 : printf (_("\
3869 : \nOptions starting with -g, -f, -m, -O, -W, or --param are automatically\n\
3870 : passed on to the various sub-processes invoked by %s. In order to pass\n\
3871 : other options on to these processes the -W<letter> options must be used.\n\
3872 : "), progname);
3873 :
3874 : /* The rest of the options are displayed by invocations of the various
3875 : sub-processes. */
3876 4 : }
3877 :
3878 : static void
3879 0 : add_preprocessor_option (const char *option, int len)
3880 : {
3881 0 : preprocessor_options.safe_push (save_string (option, len));
3882 0 : }
3883 :
3884 : static void
3885 195 : add_assembler_option (const char *option, int len)
3886 : {
3887 195 : assembler_options.safe_push (save_string (option, len));
3888 195 : }
3889 :
3890 : static void
3891 82 : add_linker_option (const char *option, int len)
3892 : {
3893 82 : linker_options.safe_push (save_string (option, len));
3894 82 : }
3895 :
3896 : /* Allocate space for an input file in infiles. */
3897 :
3898 : static void
3899 920630 : alloc_infile (void)
3900 : {
3901 920630 : if (n_infiles_alloc == 0)
3902 : {
3903 311717 : n_infiles_alloc = 16;
3904 311717 : infiles = XNEWVEC (struct infile, n_infiles_alloc);
3905 : }
3906 608913 : else if (n_infiles_alloc == n_infiles)
3907 : {
3908 247 : n_infiles_alloc *= 2;
3909 247 : infiles = XRESIZEVEC (struct infile, infiles, n_infiles_alloc);
3910 : }
3911 920630 : }
3912 :
3913 : /* Store an input file with the given NAME and LANGUAGE in
3914 : infiles. */
3915 :
3916 : static void
3917 608914 : add_infile (const char *name, const char *language, bool art = false)
3918 : {
3919 608914 : alloc_infile ();
3920 608914 : infiles[n_infiles].name = name;
3921 608914 : infiles[n_infiles].artificial = art;
3922 608914 : infiles[n_infiles++].language = language;
3923 608914 : }
3924 :
3925 : /* Allocate space for a switch in switches. */
3926 :
3927 : static void
3928 7886136 : alloc_switch (void)
3929 : {
3930 7886136 : if (n_switches_alloc == 0)
3931 : {
3932 312031 : n_switches_alloc = 16;
3933 312031 : switches = XNEWVEC (struct switchstr, n_switches_alloc);
3934 : }
3935 7574105 : else if (n_switches_alloc == n_switches)
3936 : {
3937 278183 : n_switches_alloc *= 2;
3938 278183 : switches = XRESIZEVEC (struct switchstr, switches, n_switches_alloc);
3939 : }
3940 7886136 : }
3941 :
3942 : /* Save an option OPT with N_ARGS arguments in array ARGS, marking it
3943 : as validated if VALIDATED and KNOWN if it is an internal switch. */
3944 :
3945 : static void
3946 6985922 : save_switch (const char *opt, size_t n_args, const char *const *args,
3947 : bool validated, bool known)
3948 : {
3949 6985922 : alloc_switch ();
3950 6985922 : switches[n_switches].part1 = opt + 1;
3951 6985922 : if (n_args == 0)
3952 5405775 : switches[n_switches].args = 0;
3953 : else
3954 : {
3955 1580147 : switches[n_switches].args = XNEWVEC (const char *, n_args + 1);
3956 1580147 : memcpy (switches[n_switches].args, args, n_args * sizeof (const char *));
3957 1580147 : switches[n_switches].args[n_args] = NULL;
3958 : }
3959 :
3960 6985922 : switches[n_switches].live_cond = 0;
3961 6985922 : switches[n_switches].validated = validated;
3962 6985922 : switches[n_switches].known = known;
3963 6985922 : switches[n_switches].ordering = 0;
3964 6985922 : n_switches++;
3965 6985922 : }
3966 :
3967 : /* Set the SOURCE_DATE_EPOCH environment variable to the current time if it is
3968 : not set already. */
3969 :
3970 : static void
3971 635 : set_source_date_epoch_envvar ()
3972 : {
3973 : /* Array size is 21 = ceil(log_10(2^64)) + 1 to hold string representations
3974 : of 64 bit integers. */
3975 635 : char source_date_epoch[21];
3976 635 : time_t tt;
3977 :
3978 635 : errno = 0;
3979 635 : tt = time (NULL);
3980 635 : if (tt < (time_t) 0 || errno != 0)
3981 0 : tt = (time_t) 0;
3982 :
3983 635 : snprintf (source_date_epoch, 21, "%llu", (unsigned long long) tt);
3984 : /* Using setenv instead of xputenv because we want the variable to remain
3985 : after finalizing so that it's still set in the second run when using
3986 : -fcompare-debug. */
3987 635 : setenv ("SOURCE_DATE_EPOCH", source_date_epoch, 0);
3988 635 : }
3989 :
3990 : /* Handle an option DECODED that is unknown to the option-processing
3991 : machinery. */
3992 :
3993 : static bool
3994 794 : driver_unknown_option_callback (const struct cl_decoded_option *decoded)
3995 : {
3996 794 : const char *opt = decoded->arg;
3997 794 : if (opt[1] == 'W' && opt[2] == 'n' && opt[3] == 'o' && opt[4] == '-'
3998 95 : && !(decoded->errors & CL_ERR_NEGATIVE))
3999 : {
4000 : /* Leave unknown -Wno-* options for the compiler proper, to be
4001 : diagnosed only if there are warnings. */
4002 94 : save_switch (decoded->canonical_option[0],
4003 94 : decoded->canonical_option_num_elements - 1,
4004 : &decoded->canonical_option[1], false, true);
4005 94 : return false;
4006 : }
4007 700 : if (decoded->opt_index == OPT_SPECIAL_unknown)
4008 : {
4009 : /* Give it a chance to define it a spec file. */
4010 700 : save_switch (decoded->canonical_option[0],
4011 700 : decoded->canonical_option_num_elements - 1,
4012 : &decoded->canonical_option[1], false, false);
4013 700 : return false;
4014 : }
4015 : else
4016 : return true;
4017 : }
4018 :
4019 : /* Handle an option DECODED that is not marked as CL_DRIVER.
4020 : LANG_MASK will always be CL_DRIVER. */
4021 :
4022 : static void
4023 4513210 : driver_wrong_lang_callback (const struct cl_decoded_option *decoded,
4024 : unsigned int lang_mask ATTRIBUTE_UNUSED)
4025 : {
4026 : /* At this point, non-driver options are accepted (and expected to
4027 : be passed down by specs) unless marked to be rejected by the
4028 : driver. Options to be rejected by the driver but accepted by the
4029 : compilers proper are treated just like completely unknown
4030 : options. */
4031 4513210 : const struct cl_option *option = &cl_options[decoded->opt_index];
4032 :
4033 4513210 : if (option->cl_reject_driver)
4034 0 : error ("unrecognized command-line option %qs",
4035 0 : decoded->orig_option_with_args_text);
4036 : else
4037 4513210 : save_switch (decoded->canonical_option[0],
4038 4513210 : decoded->canonical_option_num_elements - 1,
4039 : &decoded->canonical_option[1], false, true);
4040 4513210 : }
4041 :
4042 : static const char *spec_lang = 0;
4043 : static int last_language_n_infiles;
4044 :
4045 :
4046 : /* Check that GCC is configured to support the offload target. */
4047 :
4048 : static bool
4049 152 : check_offload_target_name (const char *target, ptrdiff_t len)
4050 : {
4051 152 : const char *n, *c = OFFLOAD_TARGETS;
4052 304 : while (c)
4053 : {
4054 152 : n = strchr (c, ',');
4055 152 : if (n == NULL)
4056 152 : n = strchr (c, '\0');
4057 152 : if (len == n - c && strncmp (target, c, n - c) == 0)
4058 : break;
4059 152 : c = *n ? n + 1 : NULL;
4060 : }
4061 152 : if (!c)
4062 : {
4063 152 : auto_vec<const char*> candidates;
4064 152 : size_t olen = strlen (OFFLOAD_TARGETS) + 1;
4065 152 : char *cand = XALLOCAVEC (char, olen);
4066 152 : memcpy (cand, OFFLOAD_TARGETS, olen);
4067 152 : for (c = strtok (cand, ","); c; c = strtok (NULL, ","))
4068 0 : candidates.safe_push (c);
4069 152 : candidates.safe_push ("default");
4070 152 : candidates.safe_push ("disable");
4071 :
4072 152 : char *target2 = XALLOCAVEC (char, len + 1);
4073 152 : memcpy (target2, target, len);
4074 152 : target2[len] = '\0';
4075 :
4076 152 : error ("GCC is not configured to support %qs as %<-foffload=%> argument",
4077 : target2);
4078 :
4079 152 : char *s;
4080 152 : const char *hint = candidates_list_and_hint (target2, s, candidates);
4081 152 : if (hint)
4082 0 : inform (UNKNOWN_LOCATION,
4083 : "valid %<-foffload=%> arguments are: %s; "
4084 : "did you mean %qs?", s, hint);
4085 : else
4086 152 : inform (UNKNOWN_LOCATION, "valid %<-foffload=%> arguments are: %s", s);
4087 152 : XDELETEVEC (s);
4088 152 : return false;
4089 152 : }
4090 : return true;
4091 : }
4092 :
4093 : /* Sanity check for -foffload-options. */
4094 :
4095 : static void
4096 27 : check_foffload_target_names (const char *arg)
4097 : {
4098 27 : const char *cur, *next, *end;
4099 : /* If option argument starts with '-' then no target is specified and we
4100 : do not need to parse it. */
4101 27 : if (arg[0] == '-')
4102 : return;
4103 0 : end = strchr (arg, '=');
4104 0 : if (end == NULL)
4105 : {
4106 0 : error ("%<=%>options missing after %<-foffload-options=%>target");
4107 0 : return;
4108 : }
4109 :
4110 : cur = arg;
4111 0 : while (cur < end)
4112 : {
4113 0 : next = strchr (cur, ',');
4114 0 : if (next == NULL)
4115 0 : next = end;
4116 0 : next = (next > end) ? end : next;
4117 :
4118 : /* Retain non-supported targets after printing an error as those will not
4119 : be processed; each enabled target only processes its triplet. */
4120 0 : check_offload_target_name (cur, next - cur);
4121 0 : cur = next + 1;
4122 : }
4123 : }
4124 :
4125 : /* Parse -foffload option argument. */
4126 :
4127 : static void
4128 2886 : handle_foffload_option (const char *arg)
4129 : {
4130 2886 : const char *c, *cur, *n, *next, *end;
4131 2886 : char *target;
4132 :
4133 : /* If option argument starts with '-' then no target is specified and we
4134 : do not need to parse it. */
4135 2886 : if (arg[0] == '-')
4136 : return;
4137 :
4138 2047 : end = strchr (arg, '=');
4139 2047 : if (end == NULL)
4140 2047 : end = strchr (arg, '\0');
4141 2047 : cur = arg;
4142 :
4143 2047 : while (cur < end)
4144 : {
4145 2047 : next = strchr (cur, ',');
4146 2047 : if (next == NULL)
4147 2047 : next = end;
4148 2047 : next = (next > end) ? end : next;
4149 :
4150 2047 : target = XNEWVEC (char, next - cur + 1);
4151 2047 : memcpy (target, cur, next - cur);
4152 2047 : target[next - cur] = '\0';
4153 :
4154 : /* Reset offloading list and continue. */
4155 2047 : if (strcmp (target, "default") == 0)
4156 : {
4157 0 : free (offload_targets);
4158 0 : offload_targets = NULL;
4159 0 : goto next_item;
4160 : }
4161 :
4162 : /* If 'disable' is passed to the option, clean the list of
4163 : offload targets and return, even if more targets follow.
4164 : Likewise if GCC is not configured to support that offload target. */
4165 2047 : if (strcmp (target, "disable") == 0
4166 2047 : || !check_offload_target_name (target, next - cur))
4167 : {
4168 2047 : free (offload_targets);
4169 2047 : offload_targets = xstrdup ("");
4170 2047 : return;
4171 : }
4172 :
4173 0 : if (!offload_targets)
4174 : {
4175 0 : offload_targets = target;
4176 0 : target = NULL;
4177 : }
4178 : else
4179 : {
4180 : /* Check that the target hasn't already presented in the list. */
4181 : c = offload_targets;
4182 0 : do
4183 : {
4184 0 : n = strchr (c, ':');
4185 0 : if (n == NULL)
4186 0 : n = strchr (c, '\0');
4187 :
4188 0 : if (next - cur == n - c && strncmp (c, target, n - c) == 0)
4189 : break;
4190 :
4191 0 : c = n + 1;
4192 : }
4193 0 : while (*n);
4194 :
4195 : /* If duplicate is not found, append the target to the list. */
4196 0 : if (c > n)
4197 : {
4198 0 : size_t offload_targets_len = strlen (offload_targets);
4199 0 : offload_targets
4200 0 : = XRESIZEVEC (char, offload_targets,
4201 : offload_targets_len + 1 + next - cur + 1);
4202 0 : offload_targets[offload_targets_len++] = ':';
4203 0 : memcpy (offload_targets + offload_targets_len, target, next - cur + 1);
4204 : }
4205 : }
4206 0 : next_item:
4207 0 : cur = next + 1;
4208 0 : XDELETEVEC (target);
4209 : }
4210 : }
4211 :
4212 : /* Forward certain options to offloading compilation. */
4213 :
4214 : static void
4215 0 : forward_offload_option (size_t opt_index, const char *arg, bool validated)
4216 : {
4217 0 : switch (opt_index)
4218 : {
4219 0 : case OPT_l:
4220 : /* Use a '_GCC_' prefix and standard name ('-l_GCC_m' irrespective of the
4221 : host's 'MATH_LIBRARY', for example), so that the 'mkoffload's can tell
4222 : this has been synthesized here, and translate/drop as necessary. */
4223 : /* Note that certain libraries ('-lc', '-lgcc', '-lgomp', for example)
4224 : are injected by default in offloading compilation, and therefore not
4225 : forwarded here. */
4226 : /* GCC libraries. */
4227 0 : if (/* '-lgfortran' */ strcmp (arg, "gfortran") == 0
4228 0 : || /* '-lstdc++' */ strcmp (arg, "stdc++") == 0)
4229 0 : save_switch (concat ("-foffload-options=-l_GCC_", arg, NULL),
4230 : 0, NULL, validated, true);
4231 : /* Other libraries. */
4232 : else
4233 : {
4234 : /* The case will need special consideration where on the host
4235 : '!need_math', but for offloading compilation still need
4236 : '-foffload-options=-l_GCC_m'. The problem is that we don't get
4237 : here anything like '-lm', because it's not synthesized in
4238 : 'gcc/fortran/gfortranspec.cc:lang_specific_driver', for example.
4239 : Generally synthesizing '-foffload-options=-l_GCC_m' etc. in the
4240 : language specific drivers is non-trivial, needs very careful
4241 : review of their options handling. However, this issue is not
4242 : actually relevant for the current set of supported host/offloading
4243 : configurations. */
4244 0 : int need_math = (MATH_LIBRARY[0] != '\0');
4245 0 : if (/* '-lm' */ (need_math && strcmp (arg, MATH_LIBRARY) == 0))
4246 0 : save_switch ("-foffload-options=-l_GCC_m",
4247 : 0, NULL, validated, true);
4248 : }
4249 0 : break;
4250 0 : default:
4251 0 : gcc_unreachable ();
4252 : }
4253 0 : }
4254 :
4255 : /* Handle a driver option; arguments and return value as for
4256 : handle_option. */
4257 :
4258 : static bool
4259 2827380 : driver_handle_option (struct gcc_options *opts,
4260 : struct gcc_options *opts_set,
4261 : const struct cl_decoded_option *decoded,
4262 : unsigned int lang_mask ATTRIBUTE_UNUSED, int kind,
4263 : location_t loc,
4264 : const struct cl_option_handlers *handlers ATTRIBUTE_UNUSED,
4265 : diagnostics::context *dc,
4266 : void (*) (void))
4267 : {
4268 2827380 : size_t opt_index = decoded->opt_index;
4269 2827380 : const char *arg = decoded->arg;
4270 2827380 : const char *compare_debug_replacement_opt;
4271 2827380 : int value = decoded->value;
4272 2827380 : bool validated = false;
4273 2827380 : bool do_save = true;
4274 :
4275 2827380 : gcc_assert (opts == &global_options);
4276 2827380 : gcc_assert (opts_set == &global_options_set);
4277 2827380 : gcc_assert (static_cast<diagnostics::kind> (kind)
4278 : == diagnostics::kind::unspecified);
4279 2827380 : gcc_assert (loc == UNKNOWN_LOCATION);
4280 2827380 : gcc_assert (dc == global_dc);
4281 :
4282 2827380 : switch (opt_index)
4283 : {
4284 1 : case OPT_dumpspecs:
4285 1 : {
4286 1 : struct spec_list *sl;
4287 1 : init_spec ();
4288 47 : for (sl = specs; sl; sl = sl->next)
4289 46 : printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec));
4290 1 : if (link_command_spec)
4291 1 : printf ("*link_command:\n%s\n\n", link_command_spec);
4292 1 : exit (0);
4293 : }
4294 :
4295 280 : case OPT_dumpversion:
4296 280 : printf ("%s\n", spec_version);
4297 280 : exit (0);
4298 :
4299 0 : case OPT_dumpmachine:
4300 0 : printf ("%s\n", spec_machine);
4301 0 : exit (0);
4302 :
4303 0 : case OPT_dumpfullversion:
4304 0 : printf ("%s\n", BASEVER);
4305 0 : exit (0);
4306 :
4307 78 : case OPT__version:
4308 78 : print_version = 1;
4309 :
4310 : /* CPP driver cannot obtain switch from cc1_options. */
4311 78 : if (is_cpp_driver)
4312 0 : add_preprocessor_option ("--version", strlen ("--version"));
4313 78 : add_assembler_option ("--version", strlen ("--version"));
4314 78 : add_linker_option ("--version", strlen ("--version"));
4315 78 : break;
4316 :
4317 5 : case OPT__completion_:
4318 5 : validated = true;
4319 5 : completion = decoded->arg;
4320 5 : break;
4321 :
4322 4 : case OPT__help:
4323 4 : print_help_list = 1;
4324 :
4325 : /* CPP driver cannot obtain switch from cc1_options. */
4326 4 : if (is_cpp_driver)
4327 0 : add_preprocessor_option ("--help", 6);
4328 4 : add_assembler_option ("--help", 6);
4329 4 : add_linker_option ("--help", 6);
4330 4 : break;
4331 :
4332 111 : case OPT__help_:
4333 111 : print_subprocess_help = 2;
4334 111 : break;
4335 :
4336 0 : case OPT__target_help:
4337 0 : print_subprocess_help = 1;
4338 :
4339 : /* CPP driver cannot obtain switch from cc1_options. */
4340 0 : if (is_cpp_driver)
4341 0 : add_preprocessor_option ("--target-help", 13);
4342 0 : add_assembler_option ("--target-help", 13);
4343 0 : add_linker_option ("--target-help", 13);
4344 0 : break;
4345 :
4346 : case OPT__no_sysroot_suffix:
4347 : case OPT_pass_exit_codes:
4348 : case OPT_print_search_dirs:
4349 : case OPT_print_autofdo_gcov_version:
4350 : case OPT_print_file_name_:
4351 : case OPT_print_prog_name_:
4352 : case OPT_print_multi_lib:
4353 : case OPT_print_multi_directory:
4354 : case OPT_print_sysroot:
4355 : case OPT_print_multi_os_directory:
4356 : case OPT_print_multiarch:
4357 : case OPT_print_sysroot_headers_suffix:
4358 : case OPT_time:
4359 : case OPT_wrapper:
4360 : /* These options set the variables specified in common.opt
4361 : automatically, and do not need to be saved for spec
4362 : processing. */
4363 : do_save = false;
4364 : break;
4365 :
4366 392 : case OPT_print_libgcc_file_name:
4367 392 : print_file_name = "libgcc.a";
4368 392 : do_save = false;
4369 392 : break;
4370 :
4371 0 : case OPT_fuse_ld_bfd:
4372 0 : use_ld = ".bfd";
4373 0 : break;
4374 :
4375 0 : case OPT_fuse_ld_gold:
4376 0 : use_ld = ".gold";
4377 0 : break;
4378 :
4379 0 : case OPT_fuse_ld_mold:
4380 0 : use_ld = ".mold";
4381 0 : break;
4382 :
4383 0 : case OPT_fuse_ld_wild:
4384 0 : use_ld = ".wild";
4385 0 : break;
4386 :
4387 0 : case OPT_fcompare_debug_second:
4388 0 : compare_debug_second = 1;
4389 0 : break;
4390 :
4391 629 : case OPT_fcompare_debug:
4392 629 : switch (value)
4393 : {
4394 0 : case 0:
4395 0 : compare_debug_replacement_opt = "-fcompare-debug=";
4396 0 : arg = "";
4397 0 : goto compare_debug_with_arg;
4398 :
4399 629 : case 1:
4400 629 : compare_debug_replacement_opt = "-fcompare-debug=-gtoggle";
4401 629 : arg = "-gtoggle";
4402 629 : goto compare_debug_with_arg;
4403 :
4404 0 : default:
4405 0 : gcc_unreachable ();
4406 : }
4407 6 : break;
4408 :
4409 6 : case OPT_fcompare_debug_:
4410 6 : compare_debug_replacement_opt = decoded->canonical_option[0];
4411 635 : compare_debug_with_arg:
4412 635 : gcc_assert (decoded->canonical_option_num_elements == 1);
4413 635 : gcc_assert (arg != NULL);
4414 635 : if (*arg)
4415 635 : compare_debug = 1;
4416 : else
4417 0 : compare_debug = -1;
4418 635 : if (compare_debug < 0)
4419 0 : compare_debug_opt = NULL;
4420 : else
4421 635 : compare_debug_opt = arg;
4422 635 : save_switch (compare_debug_replacement_opt, 0, NULL, validated, true);
4423 635 : set_source_date_epoch_envvar ();
4424 635 : return true;
4425 :
4426 282995 : case OPT_fdiagnostics_color_:
4427 282995 : diagnostic_color_init (dc, value);
4428 282995 : break;
4429 :
4430 274709 : case OPT_fdiagnostics_urls_:
4431 274709 : diagnostic_urls_init (dc, value);
4432 274709 : break;
4433 :
4434 0 : case OPT_fdiagnostics_show_highlight_colors:
4435 0 : dc->set_show_highlight_colors (value);
4436 0 : break;
4437 :
4438 0 : case OPT_fdiagnostics_format_:
4439 0 : {
4440 0 : const char *basename = get_diagnostic_file_output_basename (*opts);
4441 0 : gcc_assert (dc);
4442 0 : diagnostics::output_format_init (*dc,
4443 : opts->x_main_input_filename, basename,
4444 : (enum diagnostics_output_format)value,
4445 0 : opts->x_flag_diagnostics_json_formatting);
4446 0 : break;
4447 : }
4448 :
4449 0 : case OPT_fdiagnostics_add_output_:
4450 0 : handle_OPT_fdiagnostics_add_output_ (*opts, *dc, arg, loc);
4451 0 : break;
4452 :
4453 0 : case OPT_fdiagnostics_set_output_:
4454 0 : handle_OPT_fdiagnostics_set_output_ (*opts, *dc, arg, loc);
4455 0 : break;
4456 :
4457 303963 : case OPT_fdiagnostics_text_art_charset_:
4458 303963 : dc->set_text_art_charset ((enum diagnostic_text_art_charset)value);
4459 303963 : break;
4460 :
4461 : case OPT_Wa_:
4462 : {
4463 : int prev, j;
4464 : /* Pass the rest of this option to the assembler. */
4465 :
4466 : /* Split the argument at commas. */
4467 : prev = 0;
4468 634 : for (j = 0; arg[j]; j++)
4469 586 : if (arg[j] == ',')
4470 : {
4471 0 : add_assembler_option (arg + prev, j - prev);
4472 0 : prev = j + 1;
4473 : }
4474 :
4475 : /* Record the part after the last comma. */
4476 48 : add_assembler_option (arg + prev, j - prev);
4477 : }
4478 48 : do_save = false;
4479 48 : break;
4480 :
4481 : case OPT_Wp_:
4482 : {
4483 : int prev, j;
4484 : /* Pass the rest of this option to the preprocessor. */
4485 :
4486 : /* Split the argument at commas. */
4487 : prev = 0;
4488 0 : for (j = 0; arg[j]; j++)
4489 0 : if (arg[j] == ',')
4490 : {
4491 0 : add_preprocessor_option (arg + prev, j - prev);
4492 0 : prev = j + 1;
4493 : }
4494 :
4495 : /* Record the part after the last comma. */
4496 0 : add_preprocessor_option (arg + prev, j - prev);
4497 : }
4498 0 : do_save = false;
4499 0 : break;
4500 :
4501 : case OPT_Wl_:
4502 : {
4503 : int prev, j;
4504 : /* Split the argument at commas. */
4505 : prev = 0;
4506 124973 : for (j = 0; arg[j]; j++)
4507 117496 : if (arg[j] == ',')
4508 : {
4509 54 : add_infile (save_string (arg + prev, j - prev), "*");
4510 54 : prev = j + 1;
4511 : }
4512 : /* Record the part after the last comma. */
4513 7477 : add_infile (arg + prev, "*");
4514 7477 : if (strcmp (arg, "-z,lazy") == 0 || strcmp (arg, "-z,norelro") == 0)
4515 12 : avoid_linker_hardening_p = true;
4516 : }
4517 : do_save = false;
4518 : break;
4519 :
4520 12 : case OPT_z:
4521 12 : if (strcmp (arg, "lazy") == 0 || strcmp (arg, "norelro") == 0)
4522 12 : avoid_linker_hardening_p = true;
4523 : break;
4524 :
4525 0 : case OPT_Xlinker:
4526 0 : add_infile (arg, "*");
4527 0 : do_save = false;
4528 0 : break;
4529 :
4530 0 : case OPT_Xpreprocessor:
4531 0 : add_preprocessor_option (arg, strlen (arg));
4532 0 : do_save = false;
4533 0 : break;
4534 :
4535 65 : case OPT_Xassembler:
4536 65 : add_assembler_option (arg, strlen (arg));
4537 65 : do_save = false;
4538 65 : break;
4539 :
4540 267867 : case OPT_l:
4541 : /* POSIX allows separation of -l and the lib arg; canonicalize
4542 : by concatenating -l with its arg */
4543 267867 : add_infile (concat ("-l", arg, NULL), "*");
4544 :
4545 : /* Forward to offloading compilation '-l[...]' flags for standard,
4546 : well-known libraries. */
4547 : /* Doing this processing here means that we don't get to see libraries
4548 : injected via specs, such as '-lquadmath' injected via
4549 : '[build]/[target]/libgfortran/libgfortran.spec'. However, this issue
4550 : is not actually relevant for the current set of host/offloading
4551 : configurations. */
4552 267867 : if (ENABLE_OFFLOADING)
4553 : forward_offload_option (opt_index, arg, validated);
4554 :
4555 267867 : do_save = false;
4556 267867 : break;
4557 :
4558 268254 : case OPT_L:
4559 : /* Similarly, canonicalize -L for linkers that may not accept
4560 : separate arguments. */
4561 268254 : save_switch (concat ("-L", arg, NULL), 0, NULL, validated, true);
4562 268254 : return true;
4563 :
4564 0 : case OPT_F:
4565 : /* Likewise -F. */
4566 0 : save_switch (concat ("-F", arg, NULL), 0, NULL, validated, true);
4567 0 : return true;
4568 :
4569 416 : case OPT_save_temps:
4570 416 : if (!save_temps_flag)
4571 410 : save_temps_flag = SAVE_TEMPS_DUMP;
4572 : validated = true;
4573 : break;
4574 :
4575 58 : case OPT_save_temps_:
4576 58 : if (strcmp (arg, "cwd") == 0)
4577 29 : save_temps_flag = SAVE_TEMPS_CWD;
4578 29 : else if (strcmp (arg, "obj") == 0
4579 0 : || strcmp (arg, "object") == 0)
4580 29 : save_temps_flag = SAVE_TEMPS_OBJ;
4581 : else
4582 0 : fatal_error (input_location, "%qs is an unknown %<-save-temps%> option",
4583 0 : decoded->orig_option_with_args_text);
4584 58 : save_temps_overrides_dumpdir = true;
4585 58 : break;
4586 :
4587 23442 : case OPT_dumpdir:
4588 23442 : free (dumpdir);
4589 23442 : dumpdir = xstrdup (arg);
4590 23442 : save_temps_overrides_dumpdir = false;
4591 23442 : break;
4592 :
4593 24899 : case OPT_dumpbase:
4594 24899 : free (dumpbase);
4595 24899 : dumpbase = xstrdup (arg);
4596 24899 : break;
4597 :
4598 256 : case OPT_dumpbase_ext:
4599 256 : free (dumpbase_ext);
4600 256 : dumpbase_ext = xstrdup (arg);
4601 256 : break;
4602 :
4603 : case OPT_no_canonical_prefixes:
4604 : /* Already handled as a special case, so ignored here. */
4605 : do_save = false;
4606 : break;
4607 :
4608 : case OPT_pipe:
4609 : validated = true;
4610 : /* These options set the variables specified in common.opt
4611 : automatically, but do need to be saved for spec
4612 : processing. */
4613 : break;
4614 :
4615 3 : case OPT_specs_:
4616 3 : {
4617 3 : struct user_specs *user = XNEW (struct user_specs);
4618 :
4619 3 : user->next = (struct user_specs *) 0;
4620 3 : user->filename = arg;
4621 3 : if (user_specs_tail)
4622 0 : user_specs_tail->next = user;
4623 : else
4624 3 : user_specs_head = user;
4625 3 : user_specs_tail = user;
4626 : }
4627 3 : validated = true;
4628 3 : break;
4629 :
4630 0 : case OPT__sysroot_:
4631 0 : target_system_root = arg;
4632 0 : target_system_root_changed = 1;
4633 : /* Saving this option is useful to let self-specs decide to
4634 : provide a default one. */
4635 0 : do_save = true;
4636 0 : validated = true;
4637 0 : break;
4638 :
4639 0 : case OPT_time_:
4640 0 : if (report_times_to_file)
4641 0 : fclose (report_times_to_file);
4642 0 : report_times_to_file = fopen (arg, "a");
4643 0 : do_save = false;
4644 0 : break;
4645 :
4646 9532 : case OPT_truncate:
4647 9532 : totruncate_file = arg;
4648 9532 : do_save = false;
4649 9532 : break;
4650 :
4651 638 : case OPT____:
4652 : /* "-###"
4653 : This is similar to -v except that there is no execution
4654 : of the commands and the echoed arguments are quoted. It
4655 : is intended for use in shell scripts to capture the
4656 : driver-generated command line. */
4657 638 : verbose_only_flag++;
4658 638 : verbose_flag = 1;
4659 638 : do_save = false;
4660 638 : break;
4661 :
4662 506497 : case OPT_B:
4663 506497 : {
4664 506497 : size_t len = strlen (arg);
4665 :
4666 : /* Catch the case where the user has forgotten to append a
4667 : directory separator to the path. Note, they may be using
4668 : -B to add an executable name prefix, eg "i386-elf-", in
4669 : order to distinguish between multiple installations of
4670 : GCC in the same directory. Hence we must check to see
4671 : if appending a directory separator actually makes a
4672 : valid directory name. */
4673 506497 : if (!IS_DIR_SEPARATOR (arg[len - 1])
4674 506497 : && is_directory (arg))
4675 : {
4676 100129 : char *tmp = XNEWVEC (char, len + 2);
4677 100129 : strcpy (tmp, arg);
4678 100129 : tmp[len] = DIR_SEPARATOR;
4679 100129 : tmp[++len] = 0;
4680 100129 : arg = tmp;
4681 : }
4682 :
4683 506497 : add_prefix (&exec_prefixes, arg, NULL,
4684 : PREFIX_PRIORITY_B_OPT, 0, 0);
4685 506497 : add_prefix (&startfile_prefixes, arg, NULL,
4686 : PREFIX_PRIORITY_B_OPT, 0, 0);
4687 506497 : add_prefix (&include_prefixes, arg, NULL,
4688 : PREFIX_PRIORITY_B_OPT, 0, 0);
4689 : }
4690 506497 : validated = true;
4691 506497 : break;
4692 :
4693 2889 : case OPT_E:
4694 2889 : have_E = true;
4695 2889 : break;
4696 :
4697 52845 : case OPT_x:
4698 52845 : spec_lang = arg;
4699 52845 : if (!strcmp (spec_lang, "none"))
4700 : /* Suppress the warning if -xnone comes after the last input
4701 : file, because alternate command interfaces like g++ might
4702 : find it useful to place -xnone after each input file. */
4703 13937 : spec_lang = 0;
4704 : else
4705 38908 : last_language_n_infiles = n_infiles;
4706 : do_save = false;
4707 : break;
4708 :
4709 281758 : case OPT_o:
4710 281758 : have_o = 1;
4711 : #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX) || defined(HAVE_TARGET_OBJECT_SUFFIX)
4712 : arg = convert_filename (arg, ! have_c, 0);
4713 : #endif
4714 281758 : output_file = arg;
4715 : /* On some systems, ld cannot handle "-o" without a space. So
4716 : split the option from its argument. */
4717 281758 : save_switch ("-o", 1, &arg, validated, true);
4718 281758 : return true;
4719 :
4720 2167 : case OPT_pie:
4721 : #ifdef ENABLE_DEFAULT_PIE
4722 : /* -pie is turned on by default. */
4723 : validated = true;
4724 : #endif
4725 : /* FALLTHROUGH */
4726 2167 : case OPT_r:
4727 2167 : case OPT_shared:
4728 2167 : case OPT_no_pie:
4729 2167 : avoid_linker_hardening_p = true;
4730 2167 : break;
4731 :
4732 101 : case OPT_static:
4733 101 : static_p = true;
4734 101 : break;
4735 :
4736 : case OPT_static_libgcc:
4737 : case OPT_shared_libgcc:
4738 : case OPT_static_libgfortran:
4739 : case OPT_static_libquadmath:
4740 : case OPT_static_libphobos:
4741 : case OPT_static_libga68:
4742 : case OPT_static_libgm2:
4743 : case OPT_static_libstdc__:
4744 : /* These are always valid; gcc.cc itself understands the first two
4745 : gfortranspec.cc understands -static-libgfortran,
4746 : libgfortran.spec handles -static-libquadmath,
4747 : a68spec.cc understands -static-libga68,
4748 : d-spec.cc understands -static-libphobos,
4749 : gm2spec.cc understands -static-libgm2,
4750 : and g++spec.cc understands -static-libstdc++. */
4751 : validated = true;
4752 : break;
4753 :
4754 78 : case OPT_fwpa:
4755 78 : flag_wpa = "";
4756 78 : break;
4757 :
4758 27 : case OPT_foffload_options_:
4759 27 : check_foffload_target_names (arg);
4760 27 : break;
4761 :
4762 2886 : case OPT_foffload_:
4763 2886 : handle_foffload_option (arg);
4764 2886 : if (arg[0] == '-' || NULL != strchr (arg, '='))
4765 839 : save_switch (concat ("-foffload-options=", arg, NULL),
4766 : 0, NULL, validated, true);
4767 : do_save = false;
4768 : break;
4769 :
4770 0 : case OPT_gcodeview:
4771 0 : add_infile ("--pdb=", "*");
4772 0 : break;
4773 :
4774 : default:
4775 : /* Various driver options need no special processing at this
4776 : point, having been handled in a prescan above or being
4777 : handled by specs. */
4778 : break;
4779 : }
4780 :
4781 1700836 : if (do_save)
4782 1919094 : save_switch (decoded->canonical_option[0],
4783 1919094 : decoded->canonical_option_num_elements - 1,
4784 : &decoded->canonical_option[1], validated, true);
4785 : return true;
4786 : }
4787 :
4788 : /* Return true if F2 is F1 followed by a single suffix, i.e., by a
4789 : period and additional characters other than a period. */
4790 :
4791 : static inline bool
4792 88396 : adds_single_suffix_p (const char *f2, const char *f1)
4793 : {
4794 88396 : size_t len = strlen (f1);
4795 :
4796 88396 : return (strncmp (f1, f2, len) == 0
4797 79969 : && f2[len] == '.'
4798 167892 : && strchr (f2 + len + 1, '.') == NULL);
4799 : }
4800 :
4801 : /* Put the driver's standard set of option handlers in *HANDLERS. */
4802 :
4803 : static void
4804 900496 : set_option_handlers (struct cl_option_handlers *handlers)
4805 : {
4806 900496 : handlers->unknown_option_callback = driver_unknown_option_callback;
4807 900496 : handlers->wrong_lang_callback = driver_wrong_lang_callback;
4808 900496 : handlers->num_handlers = 3;
4809 900496 : handlers->handlers[0].handler = driver_handle_option;
4810 900496 : handlers->handlers[0].mask = CL_DRIVER;
4811 900496 : handlers->handlers[1].handler = common_handle_option;
4812 900496 : handlers->handlers[1].mask = CL_COMMON;
4813 900496 : handlers->handlers[2].handler = target_handle_option;
4814 900496 : handlers->handlers[2].mask = CL_TARGET;
4815 0 : }
4816 :
4817 :
4818 : /* Return the index into infiles for the single non-library
4819 : non-lto-wpa input file, -1 if there isn't any, or -2 if there is
4820 : more than one. */
4821 : static inline int
4822 160419 : single_input_file_index ()
4823 : {
4824 160419 : int ret = -1;
4825 :
4826 519729 : for (int i = 0; i < n_infiles; i++)
4827 : {
4828 371555 : if (infiles[i].language
4829 262570 : && (infiles[i].language[0] == '*'
4830 51633 : || (flag_wpa
4831 19934 : && strcmp (infiles[i].language, "lto") == 0)))
4832 230871 : continue;
4833 :
4834 140684 : if (ret != -1)
4835 : return -2;
4836 :
4837 : ret = i;
4838 : }
4839 :
4840 : return ret;
4841 : }
4842 :
4843 : /* Create the vector `switches' and its contents.
4844 : Store its length in `n_switches'. */
4845 :
4846 : static void
4847 312002 : process_command (unsigned int decoded_options_count,
4848 : struct cl_decoded_option *decoded_options)
4849 : {
4850 312002 : const char *temp;
4851 312002 : char *temp1;
4852 312002 : char *tooldir_prefix, *tooldir_prefix2;
4853 312002 : char *(*get_relative_prefix) (const char *, const char *,
4854 : const char *) = NULL;
4855 312002 : struct cl_option_handlers handlers;
4856 312002 : unsigned int j;
4857 :
4858 312002 : gcc_exec_prefix = env.get ("GCC_EXEC_PREFIX");
4859 :
4860 312002 : n_switches = 0;
4861 312002 : n_infiles = 0;
4862 312002 : added_libraries = 0;
4863 :
4864 : /* Figure compiler version from version string. */
4865 :
4866 312002 : compiler_version = temp1 = xstrdup (version_string);
4867 :
4868 2184014 : for (; *temp1; ++temp1)
4869 : {
4870 2184014 : if (*temp1 == ' ')
4871 : {
4872 312002 : *temp1 = '\0';
4873 312002 : break;
4874 : }
4875 : }
4876 :
4877 : /* Handle any -no-canonical-prefixes flag early, to assign the function
4878 : that builds relative prefixes. This function creates default search
4879 : paths that are needed later in normal option handling. */
4880 :
4881 6998077 : for (j = 1; j < decoded_options_count; j++)
4882 : {
4883 6686075 : if (decoded_options[j].opt_index == OPT_no_canonical_prefixes)
4884 : {
4885 : get_relative_prefix = make_relative_prefix_ignore_links;
4886 : break;
4887 : }
4888 : }
4889 312002 : if (! get_relative_prefix)
4890 312002 : get_relative_prefix = make_relative_prefix;
4891 :
4892 : /* Set up the default search paths. If there is no GCC_EXEC_PREFIX,
4893 : see if we can create it from the pathname specified in
4894 : decoded_options[0].arg. */
4895 :
4896 312002 : gcc_libexec_prefix = standard_libexec_prefix;
4897 : #ifndef VMS
4898 : /* FIXME: make_relative_prefix doesn't yet work for VMS. */
4899 312002 : if (!gcc_exec_prefix)
4900 : {
4901 29566 : gcc_exec_prefix = get_relative_prefix (decoded_options[0].arg,
4902 : standard_bindir_prefix,
4903 : standard_exec_prefix);
4904 29566 : gcc_libexec_prefix = get_relative_prefix (decoded_options[0].arg,
4905 : standard_bindir_prefix,
4906 : standard_libexec_prefix);
4907 29566 : if (gcc_exec_prefix)
4908 29566 : xputenv (concat ("GCC_EXEC_PREFIX=", gcc_exec_prefix, NULL));
4909 : }
4910 : else
4911 : {
4912 : /* make_relative_prefix requires a program name, but
4913 : GCC_EXEC_PREFIX is typically a directory name with a trailing
4914 : / (which is ignored by make_relative_prefix), so append a
4915 : program name. */
4916 282436 : char *tmp_prefix = concat (gcc_exec_prefix, "gcc", NULL);
4917 282436 : gcc_libexec_prefix = get_relative_prefix (tmp_prefix,
4918 : standard_exec_prefix,
4919 : standard_libexec_prefix);
4920 :
4921 : /* The path is unrelocated, so fallback to the original setting. */
4922 282436 : if (!gcc_libexec_prefix)
4923 282091 : gcc_libexec_prefix = standard_libexec_prefix;
4924 :
4925 282436 : free (tmp_prefix);
4926 : }
4927 : #else
4928 : #endif
4929 : /* From this point onward, gcc_exec_prefix is non-null if the toolchain
4930 : is relocated. The toolchain was either relocated using GCC_EXEC_PREFIX
4931 : or an automatically created GCC_EXEC_PREFIX from
4932 : decoded_options[0].arg. */
4933 :
4934 : /* Do language-specific adjustment/addition of flags. */
4935 312002 : lang_specific_driver (&decoded_options, &decoded_options_count,
4936 : &added_libraries);
4937 :
4938 311998 : if (gcc_exec_prefix)
4939 : {
4940 311998 : int len = strlen (gcc_exec_prefix);
4941 :
4942 311998 : if (len > (int) sizeof ("/lib/gcc/") - 1
4943 311998 : && (IS_DIR_SEPARATOR (gcc_exec_prefix[len-1])))
4944 : {
4945 311998 : temp = gcc_exec_prefix + len - sizeof ("/lib/gcc/") + 1;
4946 311998 : if (IS_DIR_SEPARATOR (*temp)
4947 311998 : && filename_ncmp (temp + 1, "lib", 3) == 0
4948 311998 : && IS_DIR_SEPARATOR (temp[4])
4949 623996 : && filename_ncmp (temp + 5, "gcc", 3) == 0)
4950 311998 : len -= sizeof ("/lib/gcc/") - 1;
4951 : }
4952 :
4953 311998 : set_std_prefix (gcc_exec_prefix, len);
4954 311998 : add_prefix (&exec_prefixes, gcc_libexec_prefix, "GCC",
4955 : PREFIX_PRIORITY_LAST, 0, 0);
4956 311998 : add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC",
4957 : PREFIX_PRIORITY_LAST, 0, 0);
4958 : }
4959 :
4960 : /* COMPILER_PATH and LIBRARY_PATH have values
4961 : that are lists of directory names with colons. */
4962 :
4963 311998 : temp = env.get ("COMPILER_PATH");
4964 311998 : if (temp)
4965 : {
4966 23278 : const char *startp, *endp;
4967 23278 : char *nstore = (char *) alloca (strlen (temp) + 3);
4968 :
4969 23278 : startp = endp = temp;
4970 2118326 : while (1)
4971 : {
4972 2118326 : if (*endp == PATH_SEPARATOR || *endp == 0)
4973 : {
4974 37735 : strncpy (nstore, startp, endp - startp);
4975 37735 : if (endp == startp)
4976 0 : strcpy (nstore, concat (".", dir_separator_str, NULL));
4977 37735 : else if (!IS_DIR_SEPARATOR (endp[-1]))
4978 : {
4979 0 : nstore[endp - startp] = DIR_SEPARATOR;
4980 0 : nstore[endp - startp + 1] = 0;
4981 : }
4982 : else
4983 37735 : nstore[endp - startp] = 0;
4984 37735 : add_prefix (&exec_prefixes, nstore, 0,
4985 : PREFIX_PRIORITY_LAST, 0, 0);
4986 37735 : add_prefix (&include_prefixes, nstore, 0,
4987 : PREFIX_PRIORITY_LAST, 0, 0);
4988 37735 : if (*endp == 0)
4989 : break;
4990 14457 : endp = startp = endp + 1;
4991 : }
4992 : else
4993 2080591 : endp++;
4994 : }
4995 : }
4996 :
4997 311998 : temp = env.get (LIBRARY_PATH_ENV);
4998 311998 : if (temp && *cross_compile == '0')
4999 : {
5000 24641 : const char *startp, *endp;
5001 24641 : char *nstore = (char *) alloca (strlen (temp) + 3);
5002 :
5003 24641 : startp = endp = temp;
5004 4281768 : while (1)
5005 : {
5006 4281768 : if (*endp == PATH_SEPARATOR || *endp == 0)
5007 : {
5008 178076 : strncpy (nstore, startp, endp - startp);
5009 178076 : if (endp == startp)
5010 0 : strcpy (nstore, concat (".", dir_separator_str, NULL));
5011 178076 : else if (!IS_DIR_SEPARATOR (endp[-1]))
5012 : {
5013 1363 : nstore[endp - startp] = DIR_SEPARATOR;
5014 1363 : nstore[endp - startp + 1] = 0;
5015 : }
5016 : else
5017 176713 : nstore[endp - startp] = 0;
5018 178076 : add_prefix (&startfile_prefixes, nstore, NULL,
5019 : PREFIX_PRIORITY_LAST, 0, 1);
5020 178076 : if (*endp == 0)
5021 : break;
5022 153435 : endp = startp = endp + 1;
5023 : }
5024 : else
5025 4103692 : endp++;
5026 : }
5027 : }
5028 :
5029 : /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
5030 311998 : temp = env.get ("LPATH");
5031 311998 : if (temp && *cross_compile == '0')
5032 : {
5033 0 : const char *startp, *endp;
5034 0 : char *nstore = (char *) alloca (strlen (temp) + 3);
5035 :
5036 0 : startp = endp = temp;
5037 0 : while (1)
5038 : {
5039 0 : if (*endp == PATH_SEPARATOR || *endp == 0)
5040 : {
5041 0 : strncpy (nstore, startp, endp - startp);
5042 0 : if (endp == startp)
5043 0 : strcpy (nstore, concat (".", dir_separator_str, NULL));
5044 0 : else if (!IS_DIR_SEPARATOR (endp[-1]))
5045 : {
5046 0 : nstore[endp - startp] = DIR_SEPARATOR;
5047 0 : nstore[endp - startp + 1] = 0;
5048 : }
5049 : else
5050 0 : nstore[endp - startp] = 0;
5051 0 : add_prefix (&startfile_prefixes, nstore, NULL,
5052 : PREFIX_PRIORITY_LAST, 0, 1);
5053 0 : if (*endp == 0)
5054 : break;
5055 0 : endp = startp = endp + 1;
5056 : }
5057 : else
5058 0 : endp++;
5059 : }
5060 : }
5061 :
5062 : /* Process the options and store input files and switches in their
5063 : vectors. */
5064 :
5065 311998 : last_language_n_infiles = -1;
5066 :
5067 311998 : set_option_handlers (&handlers);
5068 :
5069 5998696 : for (j = 1; j < decoded_options_count; j++)
5070 : {
5071 5882979 : switch (decoded_options[j].opt_index)
5072 : {
5073 196281 : case OPT_S:
5074 196281 : case OPT_c:
5075 196281 : case OPT_E:
5076 196281 : have_c = 1;
5077 196281 : break;
5078 : }
5079 5882979 : if (have_c)
5080 : break;
5081 : }
5082 :
5083 7396547 : for (j = 1; j < decoded_options_count; j++)
5084 : {
5085 7084830 : if (decoded_options[j].opt_index == OPT_SPECIAL_input_file)
5086 : {
5087 333166 : const char *arg = decoded_options[j].arg;
5088 :
5089 : #ifdef HAVE_TARGET_OBJECT_SUFFIX
5090 : arg = convert_filename (arg, 0, access (arg, F_OK));
5091 : #endif
5092 333166 : add_infile (arg, spec_lang,
5093 333166 : decoded_options[j].mask == CL_DRIVER);
5094 :
5095 333166 : continue;
5096 333166 : }
5097 :
5098 6751664 : read_cmdline_option (&global_options, &global_options_set,
5099 : decoded_options + j, UNKNOWN_LOCATION,
5100 : CL_DRIVER, &handlers, global_dc);
5101 : }
5102 :
5103 : /* If the user didn't specify any, default to all configured offload
5104 : targets. */
5105 311717 : if (ENABLE_OFFLOADING && offload_targets == NULL)
5106 : {
5107 : handle_foffload_option (OFFLOAD_TARGETS);
5108 : #if OFFLOAD_DEFAULTED
5109 : offload_targets_default = true;
5110 : #endif
5111 : }
5112 :
5113 : /* TODO: check if -static -pie works and maybe use it. */
5114 311717 : if (flag_hardened)
5115 : {
5116 92 : if (!avoid_linker_hardening_p && !static_p)
5117 : {
5118 : #if defined HAVE_LD_PIE && defined LD_PIE_SPEC
5119 68 : save_switch (LD_PIE_SPEC, 0, NULL, /*validated=*/true, /*known=*/false);
5120 : #endif
5121 : /* These are passed straight down to collect2 so we have to break
5122 : it up like this. */
5123 68 : if (HAVE_LD_NOW_SUPPORT)
5124 : {
5125 68 : add_infile ("-z", "*");
5126 68 : add_infile ("now", "*");
5127 : }
5128 68 : if (HAVE_LD_RELRO_SUPPORT)
5129 : {
5130 68 : add_infile ("-z", "*");
5131 68 : add_infile ("relro", "*");
5132 : }
5133 : }
5134 : /* We can't use OPT_Whardened yet. Sigh. */
5135 : else
5136 24 : warning_at (UNKNOWN_LOCATION, 0,
5137 : "linker hardening options not enabled by %<-fhardened%> "
5138 : "because other link options were specified on the command "
5139 : "line");
5140 : }
5141 :
5142 : /* Handle -gtoggle as it would later in toplev.cc:process_options to
5143 : make the debug-level-gt spec function work as expected. */
5144 311717 : if (flag_gtoggle)
5145 : {
5146 4 : if (debug_info_level == DINFO_LEVEL_NONE)
5147 0 : debug_info_level = DINFO_LEVEL_NORMAL;
5148 : else
5149 4 : debug_info_level = DINFO_LEVEL_NONE;
5150 : }
5151 :
5152 311717 : if (output_file
5153 281757 : && strcmp (output_file, "-") != 0
5154 281594 : && strcmp (output_file, HOST_BIT_BUCKET) != 0)
5155 : {
5156 : int i;
5157 833297 : for (i = 0; i < n_infiles; i++)
5158 267580 : if ((!infiles[i].language || infiles[i].language[0] != '*')
5159 581783 : && canonical_filename_eq (infiles[i].name, output_file))
5160 1 : fatal_error (input_location,
5161 : "input file %qs is the same as output file",
5162 : output_file);
5163 : }
5164 :
5165 311716 : if (output_file != NULL && output_file[0] == '\0')
5166 0 : fatal_error (input_location, "output filename may not be empty");
5167 :
5168 : /* -dumpdir and -save-temps=* both specify the location of aux/dump
5169 : outputs; the one that appears last prevails. When compiling
5170 : multiple sources, an explicit dumpbase (minus -ext) may be
5171 : combined with an explicit or implicit dumpdir, whereas when
5172 : linking, a specified or implied link output name (minus
5173 : extension) may be combined with a prevailing -save-temps=* or an
5174 : otherwise implied dumpdir, but not override a prevailing
5175 : -dumpdir. Primary outputs (e.g., linker output when linking
5176 : without -o, or .i, .s or .o outputs when processing multiple
5177 : inputs with -E, -S or -c, respectively) are NOT affected by these
5178 : -save-temps=/-dump* options, always landing in the current
5179 : directory and with the same basename as the input when an output
5180 : name is not given, but when they're intermediate outputs, they
5181 : are named like other aux outputs, so the options affect their
5182 : location and name.
5183 :
5184 : Here are some examples. There are several more in the
5185 : documentation of -o and -dump*, and some quite exhaustive tests
5186 : in gcc.misc-tests/outputs.exp.
5187 :
5188 : When compiling any number of sources, no -dump* nor
5189 : -save-temps=*, all outputs in cwd without prefix:
5190 :
5191 : # gcc -c b.c -gsplit-dwarf
5192 : -> cc1 [-dumpdir ./] -dumpbase b.c -dumpbase-ext .c # b.o b.dwo
5193 :
5194 : # gcc -c b.c d.c -gsplit-dwarf
5195 : -> cc1 [-dumpdir ./] -dumpbase b.c -dumpbase-ext .c # b.o b.dwo
5196 : && cc1 [-dumpdir ./] -dumpbase d.c -dumpbase-ext .c # d.o d.dwo
5197 :
5198 : When compiling and linking, no -dump* nor -save-temps=*, .o
5199 : outputs are temporary, aux outputs land in the dir of the output,
5200 : prefixed with the basename of the linker output:
5201 :
5202 : # gcc b.c d.c -o ab -gsplit-dwarf
5203 : -> cc1 -dumpdir ab- -dumpbase b.c -dumpbase-ext .c # ab-b.dwo
5204 : && cc1 -dumpdir ab- -dumpbase d.c -dumpbase-ext .c # ab-d.dwo
5205 : && link ... -o ab
5206 :
5207 : # gcc b.c d.c [-o a.out] -gsplit-dwarf
5208 : -> cc1 -dumpdir a- -dumpbase b.c -dumpbase-ext .c # a-b.dwo
5209 : && cc1 -dumpdir a- -dumpbase d.c -dumpbase-ext .c # a-d.dwo
5210 : && link ... [-o a.out]
5211 :
5212 : When compiling and linking, a prevailing -dumpdir fully overrides
5213 : the prefix of aux outputs given by the output name:
5214 :
5215 : # gcc -dumpdir f b.c d.c -gsplit-dwarf [-o [dir/]whatever]
5216 : -> cc1 -dumpdir f -dumpbase b.c -dumpbase-ext .c # fb.dwo
5217 : && cc1 -dumpdir f -dumpbase d.c -dumpbase-ext .c # fd.dwo
5218 : && link ... [-o whatever]
5219 :
5220 : When compiling multiple inputs, an explicit -dumpbase is combined
5221 : with -dumpdir, affecting aux outputs, but not the .o outputs:
5222 :
5223 : # gcc -dumpdir f -dumpbase g- b.c d.c -gsplit-dwarf -c
5224 : -> cc1 -dumpdir fg- -dumpbase b.c -dumpbase-ext .c # b.o fg-b.dwo
5225 : && cc1 -dumpdir fg- -dumpbase d.c -dumpbase-ext .c # d.o fg-d.dwo
5226 :
5227 : When compiling and linking with -save-temps, the .o outputs that
5228 : would have been temporary become aux outputs, so they get
5229 : affected by -dump* flags:
5230 :
5231 : # gcc -dumpdir f -dumpbase g- -save-temps b.c d.c
5232 : -> cc1 -dumpdir fg- -dumpbase b.c -dumpbase-ext .c # fg-b.o
5233 : && cc1 -dumpdir fg- -dumpbase d.c -dumpbase-ext .c # fg-d.o
5234 : && link
5235 :
5236 : If -save-temps=* prevails over -dumpdir, however, the explicit
5237 : -dumpdir is discarded, as if it wasn't there. The basename of
5238 : the implicit linker output, a.out or a.exe, becomes a- as the aux
5239 : output prefix for all compilations:
5240 :
5241 : # gcc [-dumpdir f] -save-temps=cwd b.c d.c
5242 : -> cc1 -dumpdir a- -dumpbase b.c -dumpbase-ext .c # a-b.o
5243 : && cc1 -dumpdir a- -dumpbase d.c -dumpbase-ext .c # a-d.o
5244 : && link
5245 :
5246 : A single -dumpbase, applying to multiple inputs, overrides the
5247 : linker output name, implied or explicit, as the aux output prefix:
5248 :
5249 : # gcc [-dumpdir f] -dumpbase g- -save-temps=cwd b.c d.c
5250 : -> cc1 -dumpdir g- -dumpbase b.c -dumpbase-ext .c # g-b.o
5251 : && cc1 -dumpdir g- -dumpbase d.c -dumpbase-ext .c # g-d.o
5252 : && link
5253 :
5254 : # gcc [-dumpdir f] -dumpbase g- -save-temps=cwd b.c d.c -o dir/h.out
5255 : -> cc1 -dumpdir g- -dumpbase b.c -dumpbase-ext .c # g-b.o
5256 : && cc1 -dumpdir g- -dumpbase d.c -dumpbase-ext .c # g-d.o
5257 : && link -o dir/h.out
5258 :
5259 : Now, if the linker output is NOT overridden as a prefix, but
5260 : -save-temps=* overrides implicit or explicit -dumpdir, the
5261 : effective dump dir combines the dir selected by the -save-temps=*
5262 : option with the basename of the specified or implied link output:
5263 :
5264 : # gcc [-dumpdir f] -save-temps=cwd b.c d.c -o dir/h.out
5265 : -> cc1 -dumpdir h- -dumpbase b.c -dumpbase-ext .c # h-b.o
5266 : && cc1 -dumpdir h- -dumpbase d.c -dumpbase-ext .c # h-d.o
5267 : && link -o dir/h.out
5268 :
5269 : # gcc [-dumpdir f] -save-temps=obj b.c d.c -o dir/h.out
5270 : -> cc1 -dumpdir dir/h- -dumpbase b.c -dumpbase-ext .c # dir/h-b.o
5271 : && cc1 -dumpdir dir/h- -dumpbase d.c -dumpbase-ext .c # dir/h-d.o
5272 : && link -o dir/h.out
5273 :
5274 : But then again, a single -dumpbase applying to multiple inputs
5275 : gets used instead of the linker output basename in the combined
5276 : dumpdir:
5277 :
5278 : # gcc [-dumpdir f] -dumpbase g- -save-temps=obj b.c d.c -o dir/h.out
5279 : -> cc1 -dumpdir dir/g- -dumpbase b.c -dumpbase-ext .c # dir/g-b.o
5280 : && cc1 -dumpdir dir/g- -dumpbase d.c -dumpbase-ext .c # dir/g-d.o
5281 : && link -o dir/h.out
5282 :
5283 : With a single input being compiled, the output basename does NOT
5284 : affect the dumpdir prefix.
5285 :
5286 : # gcc -save-temps=obj b.c -gsplit-dwarf -c -o dir/b.o
5287 : -> cc1 -dumpdir dir/ -dumpbase b.c -dumpbase-ext .c # dir/b.o dir/b.dwo
5288 :
5289 : but when compiling and linking even a single file, it does:
5290 :
5291 : # gcc -save-temps=obj b.c -o dir/h.out
5292 : -> cc1 -dumpdir dir/h- -dumpbase b.c -dumpbase-ext .c # dir/h-b.o
5293 :
5294 : unless an explicit -dumpdir prevails:
5295 :
5296 : # gcc -save-temps[=obj] -dumpdir g- b.c -o dir/h.out
5297 : -> cc1 -dumpdir g- -dumpbase b.c -dumpbase-ext .c # g-b.o
5298 :
5299 : */
5300 :
5301 311716 : bool explicit_dumpdir = dumpdir;
5302 :
5303 311664 : if ((!save_temps_overrides_dumpdir && explicit_dumpdir)
5304 599946 : || (output_file && not_actual_file_p (output_file)))
5305 : {
5306 : /* Do nothing. */
5307 : }
5308 :
5309 : /* If -save-temps=obj and -o name, create the prefix to use for %b.
5310 : Otherwise just make -save-temps=obj the same as -save-temps=cwd. */
5311 287205 : else if (save_temps_flag != SAVE_TEMPS_CWD && output_file != NULL)
5312 : {
5313 266233 : free (dumpdir);
5314 266233 : dumpdir = NULL;
5315 266233 : temp = lbasename (output_file);
5316 266233 : if (temp != output_file)
5317 104897 : dumpdir = xstrndup (output_file,
5318 104897 : strlen (output_file) - strlen (temp));
5319 : }
5320 20972 : else if (dumpdir)
5321 : {
5322 5 : free (dumpdir);
5323 5 : dumpdir = NULL;
5324 : }
5325 :
5326 311716 : if (save_temps_flag)
5327 468 : save_temps_flag = SAVE_TEMPS_DUMP;
5328 :
5329 : /* If there is any pathname component in an explicit -dumpbase, it
5330 : overrides dumpdir entirely, so discard it right away. Although
5331 : the presence of an explicit -dumpdir matters for the driver, it
5332 : shouldn't matter for other processes, that get all that's needed
5333 : from the -dumpdir and -dumpbase always passed to them. */
5334 311716 : if (dumpdir && dumpbase && lbasename (dumpbase) != dumpbase)
5335 : {
5336 23347 : free (dumpdir);
5337 23347 : dumpdir = NULL;
5338 : }
5339 :
5340 : /* Check that dumpbase_ext matches the end of dumpbase, drop it
5341 : otherwise. */
5342 311716 : if (dumpbase_ext && dumpbase && *dumpbase)
5343 : {
5344 20 : int lendb = strlen (dumpbase);
5345 20 : int lendbx = strlen (dumpbase_ext);
5346 :
5347 : /* -dumpbase-ext must be a suffix proper; discard it if it
5348 : matches all of -dumpbase, as that would make for an empty
5349 : basename. */
5350 20 : if (lendbx >= lendb
5351 19 : || strcmp (dumpbase + lendb - lendbx, dumpbase_ext) != 0)
5352 : {
5353 1 : free (dumpbase_ext);
5354 1 : dumpbase_ext = NULL;
5355 : }
5356 : }
5357 :
5358 : /* -dumpbase with multiple sources goes into dumpdir. With a single
5359 : source, it does only if linking and if dumpdir was not explicitly
5360 : specified. */
5361 24899 : if (dumpbase && *dumpbase
5362 335141 : && (single_input_file_index () == -2
5363 23141 : || (!have_c && !explicit_dumpdir)))
5364 : {
5365 296 : char *prefix;
5366 :
5367 296 : if (dumpbase_ext)
5368 : /* We checked that they match above. */
5369 6 : dumpbase[strlen (dumpbase) - strlen (dumpbase_ext)] = '\0';
5370 :
5371 296 : if (dumpdir)
5372 13 : prefix = concat (dumpdir, dumpbase, "-", NULL);
5373 : else
5374 283 : prefix = concat (dumpbase, "-", NULL);
5375 :
5376 296 : free (dumpdir);
5377 296 : free (dumpbase);
5378 296 : free (dumpbase_ext);
5379 296 : dumpbase = dumpbase_ext = NULL;
5380 296 : dumpdir = prefix;
5381 296 : dumpdir_trailing_dash_added = true;
5382 : }
5383 :
5384 : /* If dumpbase was not brought into dumpdir but we're linking, bring
5385 : output_file into dumpdir unless dumpdir was explicitly specified.
5386 : The test for !explicit_dumpdir is further below, because we want
5387 : to use the obase computation for a ghost outbase, passed to
5388 : GCC_COLLECT_OPTIONS. */
5389 311420 : else if (!have_c && (!explicit_dumpdir || (dumpbase && !*dumpbase)))
5390 : {
5391 : /* If we get here, we know dumpbase was not specified, or it was
5392 : specified as an empty string. If it was anything else, it
5393 : would have combined with dumpdir above, because the condition
5394 : for dumpbase to be used when present is broader than the
5395 : condition that gets us here. */
5396 115334 : gcc_assert (!dumpbase || !*dumpbase);
5397 :
5398 115334 : const char *obase;
5399 115334 : char *tofree = NULL;
5400 115334 : if (!output_file || not_actual_file_p (output_file))
5401 : obase = "a";
5402 : else
5403 : {
5404 97759 : obase = lbasename (output_file);
5405 97759 : size_t blen = strlen (obase), xlen;
5406 : /* Drop the suffix if it's dumpbase_ext, if given,
5407 : otherwise .exe or the target executable suffix, or if the
5408 : output was explicitly named a.out, but not otherwise. */
5409 97759 : if (dumpbase_ext
5410 97759 : ? (blen > (xlen = strlen (dumpbase_ext))
5411 227 : && strcmp ((temp = (obase + blen - xlen)),
5412 : dumpbase_ext) == 0)
5413 97532 : : ((temp = strrchr (obase + 1, '.'))
5414 95679 : && (xlen = strlen (temp))
5415 193211 : && (strcmp (temp, ".exe") == 0
5416 : #if defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
5417 : || strcmp (temp, TARGET_EXECUTABLE_SUFFIX) == 0
5418 : #endif
5419 8529 : || strcmp (obase, "a.out") == 0)))
5420 : {
5421 87403 : tofree = xstrndup (obase, blen - xlen);
5422 87403 : obase = tofree;
5423 : }
5424 : }
5425 :
5426 : /* We wish to save this basename to the -dumpdir passed through
5427 : GCC_COLLECT_OPTIONS within maybe_run_linker, for e.g. LTO,
5428 : but we do NOT wish to add it to e.g. %b, so we keep
5429 : outbase_length as zero. */
5430 115334 : gcc_assert (!outbase);
5431 115334 : outbase_length = 0;
5432 :
5433 : /* If we're building [dir1/]foo[.exe] out of a single input
5434 : [dir2/]foo.c that shares the same basename, dump to
5435 : [dir2/]foo.c.* rather than duplicating the basename into
5436 : [dir2/]foo-foo.c.*. */
5437 115334 : int idxin;
5438 115334 : if (dumpbase
5439 115334 : || ((idxin = single_input_file_index ()) >= 0
5440 88396 : && adds_single_suffix_p (lbasename (infiles[idxin].name),
5441 : obase)))
5442 : {
5443 80965 : if (obase == tofree)
5444 79205 : outbase = tofree;
5445 : else
5446 : {
5447 1760 : outbase = xstrdup (obase);
5448 1760 : free (tofree);
5449 : }
5450 115334 : obase = tofree = NULL;
5451 : }
5452 : else
5453 : {
5454 34369 : if (dumpdir)
5455 : {
5456 14383 : char *p = concat (dumpdir, obase, "-", NULL);
5457 14383 : free (dumpdir);
5458 14383 : dumpdir = p;
5459 : }
5460 : else
5461 19986 : dumpdir = concat (obase, "-", NULL);
5462 :
5463 34369 : dumpdir_trailing_dash_added = true;
5464 :
5465 34369 : free (tofree);
5466 34369 : obase = tofree = NULL;
5467 : }
5468 :
5469 115334 : if (!explicit_dumpdir || dumpbase)
5470 : {
5471 : /* Absent -dumpbase and present -dumpbase-ext have been applied
5472 : to the linker output name, so compute fresh defaults for each
5473 : compilation. */
5474 115334 : free (dumpbase_ext);
5475 115334 : dumpbase_ext = NULL;
5476 : }
5477 : }
5478 :
5479 : /* Now, if we're compiling, or if we haven't used the dumpbase
5480 : above, then outbase (%B) is derived from dumpbase, if given, or
5481 : from the output name, given or implied. We can't precompute
5482 : implied output names, but that's ok, since they're derived from
5483 : input names. Just make sure we skip this if dumpbase is the
5484 : empty string: we want to use input names then, so don't set
5485 : outbase. */
5486 311716 : if ((dumpbase || have_c)
5487 197772 : && !(dumpbase && !*dumpbase))
5488 : {
5489 196298 : gcc_assert (!outbase);
5490 :
5491 196298 : if (dumpbase)
5492 : {
5493 23129 : gcc_assert (single_input_file_index () != -2);
5494 : /* We do not want lbasename here; dumpbase with dirnames
5495 : overrides dumpdir entirely, even if dumpdir is
5496 : specified. */
5497 23129 : if (dumpbase_ext)
5498 : /* We've already checked above that the suffix matches. */
5499 13 : outbase = xstrndup (dumpbase,
5500 13 : strlen (dumpbase) - strlen (dumpbase_ext));
5501 : else
5502 23116 : outbase = xstrdup (dumpbase);
5503 : }
5504 173169 : else if (output_file && !not_actual_file_p (output_file))
5505 : {
5506 168711 : outbase = xstrdup (lbasename (output_file));
5507 168711 : char *p = strrchr (outbase + 1, '.');
5508 168711 : if (p)
5509 168711 : *p = '\0';
5510 : }
5511 :
5512 196298 : if (outbase)
5513 191840 : outbase_length = strlen (outbase);
5514 : }
5515 :
5516 : /* If there is any pathname component in an explicit -dumpbase, do
5517 : not use dumpdir, but retain it to pass it on to the compiler. */
5518 311716 : if (dumpdir)
5519 125253 : dumpdir_length = strlen (dumpdir);
5520 : else
5521 186463 : dumpdir_length = 0;
5522 :
5523 : /* Check that dumpbase_ext, if still present, still matches the end
5524 : of dumpbase, if present, and drop it otherwise. We only retained
5525 : it above when dumpbase was absent to maybe use it to drop the
5526 : extension from output_name before combining it with dumpdir. We
5527 : won't deal with -dumpbase-ext when -dumpbase is not explicitly
5528 : given, even if just to activate backward-compatible dumpbase:
5529 : dropping it on the floor is correct, expected and documented
5530 : behavior. Attempting to deal with a -dumpbase-ext that might
5531 : match the end of some input filename, or of the combination of
5532 : the output basename with the suffix of the input filename,
5533 : possible with an intermediate .gk extension for -fcompare-debug,
5534 : is just calling for trouble. */
5535 311716 : if (dumpbase_ext)
5536 : {
5537 22 : if (!dumpbase || !*dumpbase)
5538 : {
5539 9 : free (dumpbase_ext);
5540 9 : dumpbase_ext = NULL;
5541 : }
5542 : else
5543 13 : gcc_assert (strcmp (dumpbase + strlen (dumpbase)
5544 : - strlen (dumpbase_ext), dumpbase_ext) == 0);
5545 : }
5546 :
5547 311716 : if (save_temps_flag && use_pipes)
5548 : {
5549 : /* -save-temps overrides -pipe, so that temp files are produced */
5550 0 : if (save_temps_flag)
5551 0 : warning (0, "%<-pipe%> ignored because %<-save-temps%> specified");
5552 0 : use_pipes = 0;
5553 : }
5554 :
5555 311716 : if (!compare_debug)
5556 : {
5557 311081 : const char *gcd = env.get ("GCC_COMPARE_DEBUG");
5558 :
5559 311081 : if (gcd && gcd[0] == '-')
5560 : {
5561 0 : compare_debug = 2;
5562 0 : compare_debug_opt = gcd;
5563 : }
5564 0 : else if (gcd && *gcd && strcmp (gcd, "0"))
5565 : {
5566 0 : compare_debug = 3;
5567 0 : compare_debug_opt = "-gtoggle";
5568 : }
5569 : }
5570 635 : else if (compare_debug < 0)
5571 : {
5572 0 : compare_debug = 0;
5573 0 : gcc_assert (!compare_debug_opt);
5574 : }
5575 :
5576 : /* Set up the search paths. We add directories that we expect to
5577 : contain GNU Toolchain components before directories specified by
5578 : the machine description so that we will find GNU components (like
5579 : the GNU assembler) before those of the host system. */
5580 :
5581 : /* If we don't know where the toolchain has been installed, use the
5582 : configured-in locations. */
5583 311716 : if (!gcc_exec_prefix)
5584 : {
5585 : #ifndef OS2
5586 0 : add_prefix (&exec_prefixes, standard_libexec_prefix, "GCC",
5587 : PREFIX_PRIORITY_LAST, 1, 0);
5588 0 : add_prefix (&exec_prefixes, standard_libexec_prefix, "BINUTILS",
5589 : PREFIX_PRIORITY_LAST, 2, 0);
5590 0 : add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS",
5591 : PREFIX_PRIORITY_LAST, 2, 0);
5592 : #endif
5593 0 : add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS",
5594 : PREFIX_PRIORITY_LAST, 1, 0);
5595 : }
5596 :
5597 311716 : gcc_assert (!IS_ABSOLUTE_PATH (tooldir_base_prefix));
5598 311716 : tooldir_prefix2 = concat (tooldir_base_prefix, spec_machine,
5599 : dir_separator_str, NULL);
5600 :
5601 : /* Look for tools relative to the location from which the driver is
5602 : running, or, if that is not available, the configured prefix. */
5603 311716 : tooldir_prefix
5604 623432 : = concat (gcc_exec_prefix ? gcc_exec_prefix : standard_exec_prefix,
5605 : spec_host_machine, dir_separator_str, spec_version,
5606 : accel_dir_suffix, dir_separator_str, tooldir_prefix2, NULL);
5607 311716 : free (tooldir_prefix2);
5608 :
5609 311716 : add_prefix (&exec_prefixes,
5610 311716 : concat (tooldir_prefix, "bin", dir_separator_str, NULL),
5611 : "BINUTILS", PREFIX_PRIORITY_LAST, 0, 0);
5612 311716 : add_prefix (&startfile_prefixes,
5613 311716 : concat (tooldir_prefix, "lib", dir_separator_str, NULL),
5614 : "BINUTILS", PREFIX_PRIORITY_LAST, 0, 1);
5615 311716 : free (tooldir_prefix);
5616 :
5617 : #if defined(TARGET_SYSTEM_ROOT_RELOCATABLE) && !defined(VMS)
5618 : /* If the normal TARGET_SYSTEM_ROOT is inside of $exec_prefix,
5619 : then consider it to relocate with the rest of the GCC installation
5620 : if GCC_EXEC_PREFIX is set.
5621 : ``make_relative_prefix'' is not compiled for VMS, so don't call it. */
5622 : if (target_system_root && !target_system_root_changed && gcc_exec_prefix)
5623 : {
5624 : char *tmp_prefix = get_relative_prefix (decoded_options[0].arg,
5625 : standard_bindir_prefix,
5626 : target_system_root);
5627 : if (tmp_prefix && access_check (tmp_prefix, F_OK) == 0)
5628 : {
5629 : target_system_root = tmp_prefix;
5630 : target_system_root_changed = 1;
5631 : }
5632 : }
5633 : #endif
5634 :
5635 : /* More prefixes are enabled in main, after we read the specs file
5636 : and determine whether this is cross-compilation or not. */
5637 :
5638 311716 : if (n_infiles != 0 && n_infiles == last_language_n_infiles && spec_lang != 0)
5639 0 : warning (0, "%<-x %s%> after last input file has no effect", spec_lang);
5640 :
5641 : /* Synthesize -fcompare-debug flag from the GCC_COMPARE_DEBUG
5642 : environment variable. */
5643 311716 : if (compare_debug == 2 || compare_debug == 3)
5644 : {
5645 0 : const char *opt = concat ("-fcompare-debug=", compare_debug_opt, NULL);
5646 0 : save_switch (opt, 0, NULL, false, true);
5647 0 : compare_debug = 1;
5648 : }
5649 :
5650 : /* Ensure we only invoke each subprocess once. */
5651 311716 : if (n_infiles == 0
5652 9996 : && (print_subprocess_help || print_help_list || print_version))
5653 : {
5654 : /* Create a dummy input file, so that we can pass
5655 : the help option on to the various sub-processes. */
5656 78 : add_infile ("help-dummy", "c");
5657 : }
5658 :
5659 : /* Decide if undefined variable references are allowed in specs. */
5660 :
5661 : /* -v alone is safe. --version and --help alone or together are safe. Note
5662 : that -v would make them unsafe, as they'd then be run for subprocesses as
5663 : well, the location of which might depend on variables possibly coming
5664 : from self-specs. Note also that the command name is counted in
5665 : decoded_options_count. */
5666 :
5667 311716 : unsigned help_version_count = 0;
5668 :
5669 311716 : if (print_version)
5670 78 : help_version_count++;
5671 :
5672 311716 : if (print_help_list)
5673 4 : help_version_count++;
5674 :
5675 623432 : spec_undefvar_allowed =
5676 1658 : ((verbose_flag && decoded_options_count == 2)
5677 313296 : || help_version_count == decoded_options_count - 1);
5678 :
5679 311716 : alloc_switch ();
5680 311716 : switches[n_switches].part1 = 0;
5681 311716 : alloc_infile ();
5682 311716 : infiles[n_infiles].name = 0;
5683 311716 : }
5684 :
5685 : /* Set COLLECT_GCC_OPTIONS in the environment. If the value would
5686 : exceed COLLECT2_OPTIONS_MAX_LENGTH, spill it to a temporary
5687 : response file and set the variable to @<path> instead. */
5688 :
5689 : static void
5690 851406 : xsetenv_collect_gcc_options (char *string)
5691 : {
5692 851406 : if (strlen (string) <= COLLECT2_OPTIONS_MAX_LENGTH)
5693 : {
5694 650527 : xputenv (string);
5695 650527 : return;
5696 : }
5697 :
5698 200879 : static const char prefix[] = "COLLECT_GCC_OPTIONS=";
5699 200879 : gcc_assert (startswith (string, prefix));
5700 :
5701 : /* parse_options_from_collect_gcc_options expects argc to start
5702 : at 1, so push a placeholder argv[0]. */
5703 200879 : struct obstack argv_obstack;
5704 200879 : obstack_init (&argv_obstack);
5705 200879 : obstack_ptr_grow (&argv_obstack, const_cast<char *> (progname));
5706 200879 : int argc;
5707 200879 : parse_options_from_collect_gcc_options (string + sizeof (prefix) - 1,
5708 : &argv_obstack, &argc);
5709 200879 : char **argv = XOBFINISH (&argv_obstack, char **);
5710 :
5711 200879 : char *temp_file = make_temp_file ("");
5712 200879 : FILE *f = fopen (temp_file, "wb");
5713 200879 : if (f == nullptr)
5714 0 : fatal_error (input_location,
5715 : "cannot open response file %qs: %m", temp_file);
5716 : /* writeargv walks until NULL; skip our placeholder argv[0]. */
5717 200879 : if (writeargv (argv + 1, f) != 0)
5718 0 : fatal_error (input_location,
5719 : "cannot write response file %qs: %m", temp_file);
5720 200879 : if (fclose (f) != 0)
5721 0 : fatal_error (input_location,
5722 : "cannot close response file %qs: %m", temp_file);
5723 :
5724 200879 : char *env_val = concat (prefix, "@", temp_file, nullptr);
5725 : /* Delete on both success and failure unless -save-temps. */
5726 200879 : record_temp_file (temp_file, !save_temps_flag, !save_temps_flag);
5727 200879 : obstack_free (&argv_obstack, nullptr);
5728 200879 : xputenv (env_val);
5729 : }
5730 :
5731 : /* Store switches not filtered out by %<S in spec in COLLECT_GCC_OPTIONS
5732 : and place that in the environment. */
5733 :
5734 : static void
5735 851406 : set_collect_gcc_options (void)
5736 : {
5737 851406 : int i;
5738 851406 : int first_time;
5739 :
5740 : /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
5741 : the compiler. */
5742 851406 : obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
5743 : sizeof ("COLLECT_GCC_OPTIONS=") - 1);
5744 :
5745 851406 : first_time = true;
5746 20503742 : for (i = 0; (int) i < n_switches; i++)
5747 : {
5748 19652336 : const char *const *args;
5749 19652336 : const char *p, *q;
5750 19652336 : if (!first_time)
5751 18800930 : obstack_grow (&collect_obstack, " ", 1);
5752 :
5753 19652336 : first_time = false;
5754 :
5755 : /* Ignore elided switches. */
5756 19787449 : if ((switches[i].live_cond
5757 19652336 : & (SWITCH_IGNORE | SWITCH_KEEP_FOR_GCC))
5758 : == SWITCH_IGNORE)
5759 135113 : continue;
5760 :
5761 19517223 : obstack_grow (&collect_obstack, "'-", 2);
5762 19517223 : q = switches[i].part1;
5763 19517223 : while ((p = strchr (q, '\'')))
5764 : {
5765 0 : obstack_grow (&collect_obstack, q, p - q);
5766 0 : obstack_grow (&collect_obstack, "'\\''", 4);
5767 0 : q = ++p;
5768 : }
5769 19517223 : obstack_grow (&collect_obstack, q, strlen (q));
5770 19517223 : obstack_grow (&collect_obstack, "'", 1);
5771 :
5772 23785700 : for (args = switches[i].args; args && *args; args++)
5773 : {
5774 4268477 : obstack_grow (&collect_obstack, " '", 2);
5775 4268477 : q = *args;
5776 4268477 : while ((p = strchr (q, '\'')))
5777 : {
5778 0 : obstack_grow (&collect_obstack, q, p - q);
5779 0 : obstack_grow (&collect_obstack, "'\\''", 4);
5780 0 : q = ++p;
5781 : }
5782 4268477 : obstack_grow (&collect_obstack, q, strlen (q));
5783 4268477 : obstack_grow (&collect_obstack, "'", 1);
5784 : }
5785 : }
5786 :
5787 851406 : if (dumpdir)
5788 : {
5789 598441 : if (!first_time)
5790 598441 : obstack_grow (&collect_obstack, " ", 1);
5791 598441 : first_time = false;
5792 :
5793 598441 : obstack_grow (&collect_obstack, "'-dumpdir' '", 12);
5794 598441 : const char *p, *q;
5795 :
5796 598441 : q = dumpdir;
5797 598441 : while ((p = strchr (q, '\'')))
5798 : {
5799 0 : obstack_grow (&collect_obstack, q, p - q);
5800 0 : obstack_grow (&collect_obstack, "'\\''", 4);
5801 0 : q = ++p;
5802 : }
5803 598441 : obstack_grow (&collect_obstack, q, strlen (q));
5804 :
5805 598441 : obstack_grow (&collect_obstack, "'", 1);
5806 : }
5807 :
5808 851406 : obstack_grow (&collect_obstack, "\0", 1);
5809 851406 : xsetenv_collect_gcc_options (XOBFINISH (&collect_obstack, char *));
5810 851406 : }
5811 :
5812 : /* Process a spec string, accumulating and running commands. */
5813 :
5814 : /* These variables describe the input file name.
5815 : input_file_number is the index on outfiles of this file,
5816 : so that the output file name can be stored for later use by %o.
5817 : input_basename is the start of the part of the input file
5818 : sans all directory names, and basename_length is the number
5819 : of characters starting there excluding the suffix .c or whatever. */
5820 :
5821 : static const char *gcc_input_filename;
5822 : static int input_file_number;
5823 : size_t input_filename_length;
5824 : static int basename_length;
5825 : static int suffixed_basename_length;
5826 : static const char *input_basename;
5827 : static const char *input_suffix;
5828 : #ifndef HOST_LACKS_INODE_NUMBERS
5829 : static struct stat input_stat;
5830 : #endif
5831 : static int input_stat_set;
5832 :
5833 : /* The compiler used to process the current input file. */
5834 : static struct compiler *input_file_compiler;
5835 :
5836 : /* These are variables used within do_spec and do_spec_1. */
5837 :
5838 : /* Nonzero if an arg has been started and not yet terminated
5839 : (with space, tab or newline). */
5840 : static int arg_going;
5841 :
5842 : /* Nonzero means %d or %g has been seen; the next arg to be terminated
5843 : is a temporary file name. */
5844 : static int delete_this_arg;
5845 :
5846 : /* Nonzero means %w has been seen; the next arg to be terminated
5847 : is the output file name of this compilation. */
5848 : static int this_is_output_file;
5849 :
5850 : /* Nonzero means %s has been seen; the next arg to be terminated
5851 : is the name of a library file and we should try the standard
5852 : search dirs for it. */
5853 : static int this_is_library_file;
5854 :
5855 : /* Nonzero means %T has been seen; the next arg to be terminated
5856 : is the name of a linker script and we should try all of the
5857 : standard search dirs for it. If it is found insert a --script
5858 : command line switch and then substitute the full path in place,
5859 : otherwise generate an error message. */
5860 : static int this_is_linker_script;
5861 :
5862 : /* Nonzero means that the input of this command is coming from a pipe. */
5863 : static int input_from_pipe;
5864 :
5865 : /* Nonnull means substitute this for any suffix when outputting a switches
5866 : arguments. */
5867 : static const char *suffix_subst;
5868 :
5869 : /* If there is an argument being accumulated, terminate it and store it. */
5870 :
5871 : static void
5872 82984280 : end_going_arg (void)
5873 : {
5874 82984280 : if (arg_going)
5875 : {
5876 19519707 : const char *string;
5877 :
5878 19519707 : obstack_1grow (&obstack, 0);
5879 19519707 : string = XOBFINISH (&obstack, const char *);
5880 19519707 : if (this_is_library_file)
5881 554225 : string = find_file (string);
5882 19519707 : if (this_is_linker_script)
5883 : {
5884 0 : char * full_script_path = find_a_file (&startfile_prefixes, string, true);
5885 :
5886 0 : if (full_script_path == NULL)
5887 : {
5888 0 : error ("unable to locate default linker script %qs in the library search paths", string);
5889 : /* Script was not found on search path. */
5890 0 : return;
5891 : }
5892 0 : store_arg ("--script", false, false);
5893 0 : string = full_script_path;
5894 : }
5895 19519707 : store_arg (string, delete_this_arg, this_is_output_file);
5896 19519707 : if (this_is_output_file)
5897 102660 : outfiles[input_file_number] = string;
5898 19519707 : arg_going = 0;
5899 : }
5900 : }
5901 :
5902 :
5903 : /* Parse the WRAPPER string which is a comma separated list of the command line
5904 : and insert them into the beginning of argbuf. */
5905 :
5906 : static void
5907 0 : insert_wrapper (const char *wrapper)
5908 : {
5909 0 : int n = 0;
5910 0 : int i;
5911 0 : char *buf = xstrdup (wrapper);
5912 0 : char *p = buf;
5913 0 : unsigned int old_length = argbuf.length ();
5914 :
5915 0 : do
5916 : {
5917 0 : n++;
5918 0 : while (*p == ',')
5919 0 : p++;
5920 : }
5921 0 : while ((p = strchr (p, ',')) != NULL);
5922 :
5923 0 : argbuf.safe_grow (old_length + n, true);
5924 0 : memmove (argbuf.address () + n,
5925 0 : argbuf.address (),
5926 0 : old_length * sizeof (const_char_p));
5927 :
5928 0 : i = 0;
5929 0 : p = buf;
5930 : do
5931 : {
5932 0 : while (*p == ',')
5933 : {
5934 0 : *p = 0;
5935 0 : p++;
5936 : }
5937 0 : argbuf[i] = p;
5938 0 : i++;
5939 : }
5940 0 : while ((p = strchr (p, ',')) != NULL);
5941 0 : gcc_assert (i == n);
5942 0 : }
5943 :
5944 : /* Process the spec SPEC and run the commands specified therein.
5945 : Returns 0 if the spec is successfully processed; -1 if failed. */
5946 :
5947 : int
5948 585102 : do_spec (const char *spec)
5949 : {
5950 585102 : int value;
5951 :
5952 585102 : value = do_spec_2 (spec, NULL);
5953 :
5954 : /* Force out any unfinished command.
5955 : If -pipe, this forces out the last command if it ended in `|'. */
5956 585102 : if (value == 0)
5957 : {
5958 579178 : if (argbuf.length () > 0
5959 870006 : && !strcmp (argbuf.last (), "|"))
5960 0 : argbuf.pop ();
5961 :
5962 579178 : set_collect_gcc_options ();
5963 :
5964 579178 : if (argbuf.length () > 0)
5965 290828 : value = execute ();
5966 : }
5967 :
5968 585102 : return value;
5969 : }
5970 :
5971 : /* Process the spec SPEC, with SOFT_MATCHED_PART designating the current value
5972 : of a matched * pattern which may be re-injected by way of %*. */
5973 :
5974 : static int
5975 5527240 : do_spec_2 (const char *spec, const char *soft_matched_part)
5976 : {
5977 5527240 : int result;
5978 :
5979 5527240 : clear_args ();
5980 5527240 : arg_going = 0;
5981 5527240 : delete_this_arg = 0;
5982 5527240 : this_is_output_file = 0;
5983 5527240 : this_is_library_file = 0;
5984 5527240 : this_is_linker_script = 0;
5985 5527240 : input_from_pipe = 0;
5986 5527240 : suffix_subst = NULL;
5987 :
5988 5527240 : result = do_spec_1 (spec, 0, soft_matched_part);
5989 :
5990 5527240 : end_going_arg ();
5991 :
5992 5527240 : return result;
5993 : }
5994 :
5995 : /* Process the given spec string and add any new options to the end
5996 : of the switches/n_switches array. */
5997 :
5998 : static void
5999 3118480 : do_option_spec (const char *name, const char *spec)
6000 : {
6001 3118480 : unsigned int i, value_count, value_len;
6002 3118480 : const char *p, *q, *value;
6003 3118480 : char *tmp_spec, *tmp_spec_p;
6004 :
6005 3118480 : if (configure_default_options[0].name == NULL)
6006 : return;
6007 :
6008 8419896 : for (i = 0; i < ARRAY_SIZE (configure_default_options); i++)
6009 5925112 : if (strcmp (configure_default_options[i].name, name) == 0)
6010 : break;
6011 3118480 : if (i == ARRAY_SIZE (configure_default_options))
6012 : return;
6013 :
6014 623696 : value = configure_default_options[i].value;
6015 623696 : value_len = strlen (value);
6016 :
6017 : /* Compute the size of the final spec. */
6018 623696 : value_count = 0;
6019 623696 : p = spec;
6020 1247392 : while ((p = strstr (p, "%(VALUE)")) != NULL)
6021 : {
6022 623696 : p ++;
6023 623696 : value_count ++;
6024 : }
6025 :
6026 : /* Replace each %(VALUE) by the specified value. */
6027 623696 : tmp_spec = (char *) alloca (strlen (spec) + 1
6028 : + value_count * (value_len - strlen ("%(VALUE)")));
6029 623696 : tmp_spec_p = tmp_spec;
6030 623696 : q = spec;
6031 1247392 : while ((p = strstr (q, "%(VALUE)")) != NULL)
6032 : {
6033 623696 : memcpy (tmp_spec_p, q, p - q);
6034 623696 : tmp_spec_p = tmp_spec_p + (p - q);
6035 623696 : memcpy (tmp_spec_p, value, value_len);
6036 623696 : tmp_spec_p += value_len;
6037 623696 : q = p + strlen ("%(VALUE)");
6038 : }
6039 623696 : strcpy (tmp_spec_p, q);
6040 :
6041 623696 : do_self_spec (tmp_spec);
6042 : }
6043 :
6044 : /* Process the given spec string and add any new options to the end
6045 : of the switches/n_switches array. */
6046 :
6047 : static void
6048 2806977 : do_self_spec (const char *spec)
6049 : {
6050 2806977 : int i;
6051 :
6052 2806977 : do_spec_2 (spec, NULL);
6053 2806977 : do_spec_1 (" ", 0, NULL);
6054 :
6055 : /* Mark %<S switches processed by do_self_spec to be ignored permanently.
6056 : do_self_specs adds the replacements to switches array, so it shouldn't
6057 : be processed afterwards. */
6058 67519646 : for (i = 0; i < n_switches; i++)
6059 61905692 : if ((switches[i].live_cond & SWITCH_IGNORE))
6060 683 : switches[i].live_cond |= SWITCH_IGNORE_PERMANENTLY;
6061 :
6062 2806977 : if (argbuf.length () > 0)
6063 : {
6064 588498 : const char **argbuf_copy;
6065 588498 : struct cl_decoded_option *decoded_options;
6066 588498 : struct cl_option_handlers handlers;
6067 588498 : unsigned int decoded_options_count;
6068 588498 : unsigned int j;
6069 :
6070 : /* Create a copy of argbuf with a dummy argv[0] entry for
6071 : decode_cmdline_options_to_array. */
6072 588498 : argbuf_copy = XNEWVEC (const char *,
6073 : argbuf.length () + 1);
6074 588498 : argbuf_copy[0] = "";
6075 588498 : memcpy (argbuf_copy + 1, argbuf.address (),
6076 588498 : argbuf.length () * sizeof (const char *));
6077 :
6078 1176996 : decode_cmdline_options_to_array (argbuf.length () + 1,
6079 : argbuf_copy,
6080 : CL_DRIVER, &decoded_options,
6081 : &decoded_options_count);
6082 588498 : free (argbuf_copy);
6083 :
6084 588498 : set_option_handlers (&handlers);
6085 :
6086 1179536 : for (j = 1; j < decoded_options_count; j++)
6087 : {
6088 591038 : switch (decoded_options[j].opt_index)
6089 : {
6090 0 : case OPT_SPECIAL_input_file:
6091 : /* Specs should only generate options, not input
6092 : files. */
6093 0 : if (strcmp (decoded_options[j].arg, "-") != 0)
6094 0 : fatal_error (input_location,
6095 : "switch %qs does not start with %<-%>",
6096 : decoded_options[j].arg);
6097 : else
6098 0 : fatal_error (input_location,
6099 : "spec-generated switch is just %<-%>");
6100 1270 : break;
6101 :
6102 1270 : case OPT_fcompare_debug_second:
6103 1270 : case OPT_fcompare_debug:
6104 1270 : case OPT_fcompare_debug_:
6105 1270 : case OPT_o:
6106 : /* Avoid duplicate processing of some options from
6107 : compare-debug specs; just save them here. */
6108 1270 : save_switch (decoded_options[j].canonical_option[0],
6109 1270 : (decoded_options[j].canonical_option_num_elements
6110 : - 1),
6111 1270 : &decoded_options[j].canonical_option[1], false, true);
6112 1270 : break;
6113 :
6114 589768 : default:
6115 589768 : read_cmdline_option (&global_options, &global_options_set,
6116 : decoded_options + j, UNKNOWN_LOCATION,
6117 : CL_DRIVER, &handlers, global_dc);
6118 589768 : break;
6119 : }
6120 : }
6121 :
6122 588498 : free (decoded_options);
6123 :
6124 588498 : alloc_switch ();
6125 588498 : switches[n_switches].part1 = 0;
6126 : }
6127 2806977 : }
6128 :
6129 : /* Callback for processing %D and %I specs. */
6130 :
6131 : struct spec_path {
6132 : const char *option;
6133 : const char *append;
6134 : size_t append_len;
6135 : bool omit_relative;
6136 : bool separate_options;
6137 : bool realpaths;
6138 :
6139 : void *operator() (char *path, bool);
6140 : };
6141 :
6142 : void *
6143 3426388 : spec_path::operator() (char *path, bool)
6144 : {
6145 3426388 : size_t len = 0;
6146 3426388 : char save = 0;
6147 :
6148 : /* The path must exist; we want to resolve it to the realpath so that this
6149 : can be embedded as a runpath. */
6150 3426388 : if (realpaths)
6151 0 : path = lrealpath (path);
6152 :
6153 : /* However, if we failed to resolve it - perhaps because there was a bogus
6154 : -B option on the command line, then punt on this entry. */
6155 3426388 : if (!path)
6156 : return NULL;
6157 :
6158 3426388 : if (omit_relative && !IS_ABSOLUTE_PATH (path))
6159 : return NULL;
6160 :
6161 3426388 : if (append_len != 0)
6162 : {
6163 1424876 : len = strlen (path);
6164 1424876 : memcpy (path + len, append, append_len + 1);
6165 : }
6166 :
6167 3426388 : if (!is_directory (path))
6168 : return NULL;
6169 :
6170 1291802 : do_spec_1 (option, 1, NULL);
6171 1291802 : if (separate_options)
6172 463857 : do_spec_1 (" ", 0, NULL);
6173 :
6174 1291802 : if (append_len == 0)
6175 : {
6176 827945 : len = strlen (path);
6177 827945 : save = path[len - 1];
6178 827945 : if (IS_DIR_SEPARATOR (path[len - 1]))
6179 827945 : path[len - 1] = '\0';
6180 : }
6181 :
6182 1291802 : do_spec_1 (path, 1, NULL);
6183 1291802 : do_spec_1 (" ", 0, NULL);
6184 :
6185 : /* Must not damage the original path. */
6186 1291802 : if (append_len == 0)
6187 827945 : path[len - 1] = save;
6188 :
6189 : return NULL;
6190 : }
6191 :
6192 : /* True if we should compile INFILE. */
6193 :
6194 : static bool
6195 46681 : compile_input_file_p (struct infile *infile)
6196 : {
6197 29083 : if ((!infile->language) || (infile->language[0] != '*'))
6198 41932 : if (infile->incompiler == input_file_compiler)
6199 0 : return true;
6200 : return false;
6201 : }
6202 :
6203 : /* Process each member of VEC as a spec. */
6204 :
6205 : static void
6206 482505 : do_specs_vec (vec<char_p> vec)
6207 : {
6208 482623 : for (char *opt : vec)
6209 : {
6210 70 : do_spec_1 (opt, 1, NULL);
6211 : /* Make each accumulated option a separate argument. */
6212 70 : do_spec_1 (" ", 0, NULL);
6213 : }
6214 482505 : }
6215 :
6216 : /* Add options passed via -Xassembler or -Wa to COLLECT_AS_OPTIONS. */
6217 :
6218 : static void
6219 311715 : putenv_COLLECT_AS_OPTIONS (vec<char_p> vec)
6220 : {
6221 311715 : if (vec.is_empty ())
6222 311715 : return;
6223 :
6224 103 : obstack_init (&collect_obstack);
6225 103 : obstack_grow (&collect_obstack, "COLLECT_AS_OPTIONS=",
6226 : strlen ("COLLECT_AS_OPTIONS="));
6227 :
6228 103 : char *opt;
6229 103 : unsigned ix;
6230 :
6231 298 : FOR_EACH_VEC_ELT (vec, ix, opt)
6232 : {
6233 195 : obstack_1grow (&collect_obstack, '\'');
6234 195 : obstack_grow (&collect_obstack, opt, strlen (opt));
6235 195 : obstack_1grow (&collect_obstack, '\'');
6236 195 : if (ix < vec.length () - 1)
6237 92 : obstack_1grow(&collect_obstack, ' ');
6238 : }
6239 :
6240 103 : obstack_1grow (&collect_obstack, '\0');
6241 103 : xputenv (XOBFINISH (&collect_obstack, char *));
6242 : }
6243 :
6244 : /* Process the sub-spec SPEC as a portion of a larger spec.
6245 : This is like processing a whole spec except that we do
6246 : not initialize at the beginning and we do not supply a
6247 : newline by default at the end.
6248 : INSWITCH nonzero means don't process %-sequences in SPEC;
6249 : in this case, % is treated as an ordinary character.
6250 : This is used while substituting switches.
6251 : INSWITCH nonzero also causes SPC not to terminate an argument.
6252 :
6253 : Value is zero unless a line was finished
6254 : and the command on that line reported an error. */
6255 :
6256 : static int
6257 54360702 : do_spec_1 (const char *spec, int inswitch, const char *soft_matched_part)
6258 : {
6259 54360702 : const char *p = spec;
6260 54360702 : int c;
6261 54360702 : int i;
6262 54360702 : int value;
6263 :
6264 : /* If it's an empty string argument to a switch, keep it as is. */
6265 54360702 : if (inswitch && !*p)
6266 1 : arg_going = 1;
6267 :
6268 548533588 : while ((c = *p++))
6269 : /* If substituting a switch, treat all chars like letters.
6270 : Otherwise, NL, SPC, TAB and % are special. */
6271 494222702 : switch (inswitch ? 'a' : c)
6272 : {
6273 272228 : case '\n':
6274 272228 : end_going_arg ();
6275 :
6276 272228 : if (argbuf.length () > 0
6277 544456 : && !strcmp (argbuf.last (), "|"))
6278 : {
6279 : /* A `|' before the newline means use a pipe here,
6280 : but only if -pipe was specified.
6281 : Otherwise, execute now and don't pass the `|' as an arg. */
6282 173230 : if (use_pipes)
6283 : {
6284 0 : input_from_pipe = 1;
6285 0 : break;
6286 : }
6287 : else
6288 173230 : argbuf.pop ();
6289 : }
6290 :
6291 272228 : set_collect_gcc_options ();
6292 :
6293 272228 : if (argbuf.length () > 0)
6294 : {
6295 272228 : value = execute ();
6296 272228 : if (value)
6297 : return value;
6298 : }
6299 : /* Reinitialize for a new command, and for a new argument. */
6300 266304 : clear_args ();
6301 266304 : arg_going = 0;
6302 266304 : delete_this_arg = 0;
6303 266304 : this_is_output_file = 0;
6304 266304 : this_is_library_file = 0;
6305 266304 : this_is_linker_script = 0;
6306 266304 : input_from_pipe = 0;
6307 266304 : break;
6308 :
6309 173230 : case '|':
6310 173230 : end_going_arg ();
6311 :
6312 : /* Use pipe */
6313 173230 : obstack_1grow (&obstack, c);
6314 173230 : arg_going = 1;
6315 173230 : break;
6316 :
6317 72201357 : case '\t':
6318 72201357 : case ' ':
6319 72201357 : end_going_arg ();
6320 :
6321 : /* Reinitialize for a new argument. */
6322 72201357 : delete_this_arg = 0;
6323 72201357 : this_is_output_file = 0;
6324 72201357 : this_is_library_file = 0;
6325 72201357 : this_is_linker_script = 0;
6326 72201357 : break;
6327 :
6328 50878165 : case '%':
6329 50878165 : switch (c = *p++)
6330 : {
6331 0 : case 0:
6332 0 : fatal_error (input_location, "spec %qs invalid", spec);
6333 :
6334 3618 : case 'b':
6335 : /* Don't use %b in the linker command. */
6336 3618 : gcc_assert (suffixed_basename_length);
6337 3618 : if (!this_is_output_file && dumpdir_length)
6338 709 : obstack_grow (&obstack, dumpdir, dumpdir_length);
6339 3618 : if (this_is_output_file || !outbase_length)
6340 3276 : obstack_grow (&obstack, input_basename, basename_length);
6341 : else
6342 342 : obstack_grow (&obstack, outbase, outbase_length);
6343 3618 : if (compare_debug < 0)
6344 6 : obstack_grow (&obstack, ".gk", 3);
6345 3618 : arg_going = 1;
6346 3618 : break;
6347 :
6348 10 : case 'B':
6349 : /* Don't use %B in the linker command. */
6350 10 : gcc_assert (suffixed_basename_length);
6351 10 : if (!this_is_output_file && dumpdir_length)
6352 0 : obstack_grow (&obstack, dumpdir, dumpdir_length);
6353 10 : if (this_is_output_file || !outbase_length)
6354 5 : obstack_grow (&obstack, input_basename, basename_length);
6355 : else
6356 5 : obstack_grow (&obstack, outbase, outbase_length);
6357 10 : if (compare_debug < 0)
6358 3 : obstack_grow (&obstack, ".gk", 3);
6359 10 : obstack_grow (&obstack, input_basename + basename_length,
6360 : suffixed_basename_length - basename_length);
6361 :
6362 10 : arg_going = 1;
6363 10 : break;
6364 :
6365 100147 : case 'd':
6366 100147 : delete_this_arg = 2;
6367 100147 : break;
6368 :
6369 : /* Dump out the directories specified with LIBRARY_PATH,
6370 : followed by the absolute directories
6371 : that we search for startfiles. */
6372 108224 : case 'D':
6373 108224 : {
6374 108224 : struct spec_path info;
6375 :
6376 108224 : info.option = "-L";
6377 108224 : info.append_len = 0;
6378 : #ifdef RELATIVE_PREFIX_NOT_LINKDIR
6379 : /* Used on systems which record the specified -L dirs
6380 : and use them to search for dynamic linking.
6381 : Relative directories always come from -B,
6382 : and it is better not to use them for searching
6383 : at run time. In particular, stage1 loses. */
6384 : info.omit_relative = true;
6385 : #else
6386 108224 : info.omit_relative = false;
6387 : #endif
6388 108224 : info.separate_options = false;
6389 108224 : info.realpaths = false;
6390 :
6391 108224 : for_each_path (&startfile_prefixes, true, 0, info);
6392 : }
6393 108224 : break;
6394 :
6395 0 : case 'P':
6396 0 : {
6397 0 : struct spec_path info;
6398 :
6399 0 : info.option = RUNPATH_OPTION;
6400 0 : info.append_len = 0;
6401 0 : info.omit_relative = false;
6402 0 : info.separate_options = true;
6403 : /* We want to embed the actual paths that have the libraries. */
6404 0 : info.realpaths = true;
6405 :
6406 0 : for_each_path (&startfile_prefixes, true, 0, info);
6407 : }
6408 0 : break;
6409 :
6410 : case 'e':
6411 : /* %efoo means report an error with `foo' as error message
6412 : and don't execute any more commands for this file. */
6413 : {
6414 : const char *q = p;
6415 : char *buf;
6416 0 : while (*p != 0 && *p != '\n')
6417 0 : p++;
6418 0 : buf = (char *) alloca (p - q + 1);
6419 0 : strncpy (buf, q, p - q);
6420 0 : buf[p - q] = 0;
6421 0 : error ("%s", _(buf));
6422 0 : return -1;
6423 : }
6424 : break;
6425 : case 'n':
6426 : /* %nfoo means report a notice with `foo' on stderr. */
6427 : {
6428 : const char *q = p;
6429 : char *buf;
6430 0 : while (*p != 0 && *p != '\n')
6431 0 : p++;
6432 0 : buf = (char *) alloca (p - q + 1);
6433 0 : strncpy (buf, q, p - q);
6434 0 : buf[p - q] = 0;
6435 0 : inform (UNKNOWN_LOCATION, "%s", _(buf));
6436 0 : if (*p)
6437 0 : p++;
6438 : }
6439 : break;
6440 :
6441 900 : case 'j':
6442 900 : {
6443 900 : struct stat st;
6444 :
6445 : /* If save_temps_flag is off, and the HOST_BIT_BUCKET is
6446 : defined, and it is not a directory, and it is
6447 : writable, use it. Otherwise, treat this like any
6448 : other temporary file. */
6449 :
6450 900 : if ((!save_temps_flag)
6451 900 : && (stat (HOST_BIT_BUCKET, &st) == 0) && (!S_ISDIR (st.st_mode))
6452 1800 : && (access (HOST_BIT_BUCKET, W_OK) == 0))
6453 : {
6454 900 : obstack_grow (&obstack, HOST_BIT_BUCKET,
6455 : strlen (HOST_BIT_BUCKET));
6456 900 : delete_this_arg = 0;
6457 900 : arg_going = 1;
6458 900 : break;
6459 : }
6460 : }
6461 0 : goto create_temp_file;
6462 173230 : case '|':
6463 173230 : if (use_pipes)
6464 : {
6465 0 : obstack_1grow (&obstack, '-');
6466 0 : delete_this_arg = 0;
6467 0 : arg_going = 1;
6468 :
6469 : /* consume suffix */
6470 0 : while (*p == '.' || ISALNUM ((unsigned char) *p))
6471 0 : p++;
6472 0 : if (p[0] == '%' && p[1] == 'O')
6473 0 : p += 2;
6474 :
6475 : break;
6476 : }
6477 173230 : goto create_temp_file;
6478 167446 : case 'm':
6479 167446 : if (use_pipes)
6480 : {
6481 : /* consume suffix */
6482 0 : while (*p == '.' || ISALNUM ((unsigned char) *p))
6483 0 : p++;
6484 0 : if (p[0] == '%' && p[1] == 'O')
6485 0 : p += 2;
6486 :
6487 : break;
6488 : }
6489 167446 : goto create_temp_file;
6490 536549 : case 'g':
6491 536549 : case 'u':
6492 536549 : case 'U':
6493 536549 : create_temp_file:
6494 536549 : {
6495 536549 : struct temp_name *t;
6496 536549 : int suffix_length;
6497 536549 : const char *suffix = p;
6498 536549 : char *saved_suffix = NULL;
6499 :
6500 1598847 : while (*p == '.' || ISALNUM ((unsigned char) *p))
6501 1062298 : p++;
6502 536549 : suffix_length = p - suffix;
6503 536549 : if (p[0] == '%' && p[1] == 'O')
6504 : {
6505 100369 : p += 2;
6506 : /* We don't support extra suffix characters after %O. */
6507 100369 : if (*p == '.' || ISALNUM ((unsigned char) *p))
6508 0 : fatal_error (input_location,
6509 : "spec %qs has invalid %<%%0%c%>", spec, *p);
6510 100369 : if (suffix_length == 0)
6511 : suffix = TARGET_OBJECT_SUFFIX;
6512 : else
6513 : {
6514 0 : saved_suffix
6515 0 : = XNEWVEC (char, suffix_length
6516 : + strlen (TARGET_OBJECT_SUFFIX) + 1);
6517 0 : strncpy (saved_suffix, suffix, suffix_length);
6518 0 : strcpy (saved_suffix + suffix_length,
6519 : TARGET_OBJECT_SUFFIX);
6520 : }
6521 100369 : suffix_length += strlen (TARGET_OBJECT_SUFFIX);
6522 : }
6523 :
6524 536549 : if (compare_debug < 0)
6525 : {
6526 626 : suffix = concat (".gk", suffix, NULL);
6527 626 : suffix_length += 3;
6528 : }
6529 :
6530 : /* If -save-temps was specified, use that for the
6531 : temp file. */
6532 536549 : if (save_temps_flag)
6533 : {
6534 1233 : char *tmp;
6535 1233 : bool adjusted_suffix = false;
6536 1233 : if (suffix_length
6537 1233 : && !outbase_length && !basename_length
6538 233 : && !dumpdir_trailing_dash_added)
6539 : {
6540 20 : adjusted_suffix = true;
6541 20 : suffix++;
6542 20 : suffix_length--;
6543 : }
6544 1233 : temp_filename_length
6545 1233 : = dumpdir_length + suffix_length + 1;
6546 1233 : if (outbase_length)
6547 72 : temp_filename_length += outbase_length;
6548 : else
6549 1161 : temp_filename_length += basename_length;
6550 1233 : tmp = (char *) alloca (temp_filename_length);
6551 1233 : if (dumpdir_length)
6552 1075 : memcpy (tmp, dumpdir, dumpdir_length);
6553 1233 : if (outbase_length)
6554 72 : memcpy (tmp + dumpdir_length, outbase,
6555 : outbase_length);
6556 1161 : else if (basename_length)
6557 928 : memcpy (tmp + dumpdir_length, input_basename,
6558 : basename_length);
6559 1233 : memcpy (tmp + temp_filename_length - suffix_length - 1,
6560 : suffix, suffix_length);
6561 1233 : if (adjusted_suffix)
6562 : {
6563 20 : adjusted_suffix = false;
6564 20 : suffix--;
6565 20 : suffix_length++;
6566 : }
6567 1233 : tmp[temp_filename_length - 1] = '\0';
6568 1233 : temp_filename = tmp;
6569 :
6570 1233 : if (filename_cmp (temp_filename, gcc_input_filename) != 0)
6571 : {
6572 : #ifndef HOST_LACKS_INODE_NUMBERS
6573 1233 : struct stat st_temp;
6574 :
6575 : /* Note, set_input() resets input_stat_set to 0. */
6576 1233 : if (input_stat_set == 0)
6577 : {
6578 576 : input_stat_set = stat (gcc_input_filename,
6579 : &input_stat);
6580 576 : if (input_stat_set >= 0)
6581 576 : input_stat_set = 1;
6582 : }
6583 :
6584 : /* If we have the stat for the gcc_input_filename
6585 : and we can do the stat for the temp_filename
6586 : then the they could still refer to the same
6587 : file if st_dev/st_ino's are the same. */
6588 1233 : if (input_stat_set != 1
6589 1233 : || stat (temp_filename, &st_temp) < 0
6590 375 : || input_stat.st_dev != st_temp.st_dev
6591 1247 : || input_stat.st_ino != st_temp.st_ino)
6592 : #else
6593 : /* Just compare canonical pathnames. */
6594 : char* input_realname = lrealpath (gcc_input_filename);
6595 : char* temp_realname = lrealpath (temp_filename);
6596 : bool files_differ = filename_cmp (input_realname, temp_realname);
6597 : free (input_realname);
6598 : free (temp_realname);
6599 : if (files_differ)
6600 : #endif
6601 : {
6602 1233 : temp_filename
6603 1233 : = save_string (temp_filename,
6604 : temp_filename_length - 1);
6605 1233 : obstack_grow (&obstack, temp_filename,
6606 : temp_filename_length);
6607 1233 : arg_going = 1;
6608 1233 : delete_this_arg = 0;
6609 1233 : break;
6610 : }
6611 : }
6612 : }
6613 :
6614 : /* See if we already have an association of %g/%u/%U and
6615 : suffix. */
6616 915057 : for (t = temp_names; t; t = t->next)
6617 554240 : if (t->length == suffix_length
6618 370917 : && strncmp (t->suffix, suffix, suffix_length) == 0
6619 178472 : && t->unique == (c == 'u' || c == 'U' || c == 'j'))
6620 : break;
6621 :
6622 : /* Make a new association if needed. %u and %j
6623 : require one. */
6624 535316 : if (t == 0 || c == 'u' || c == 'j')
6625 : {
6626 364590 : if (t == 0)
6627 : {
6628 360817 : t = XNEW (struct temp_name);
6629 360817 : t->next = temp_names;
6630 360817 : temp_names = t;
6631 : }
6632 364590 : t->length = suffix_length;
6633 364590 : if (saved_suffix)
6634 : {
6635 0 : t->suffix = saved_suffix;
6636 0 : saved_suffix = NULL;
6637 : }
6638 : else
6639 364590 : t->suffix = save_string (suffix, suffix_length);
6640 364590 : t->unique = (c == 'u' || c == 'U' || c == 'j');
6641 364590 : temp_filename = make_temp_file (t->suffix);
6642 364590 : temp_filename_length = strlen (temp_filename);
6643 364590 : t->filename = temp_filename;
6644 364590 : t->filename_length = temp_filename_length;
6645 : }
6646 :
6647 535316 : free (saved_suffix);
6648 :
6649 535316 : obstack_grow (&obstack, t->filename, t->filename_length);
6650 535316 : delete_this_arg = 1;
6651 : }
6652 535316 : arg_going = 1;
6653 535316 : break;
6654 :
6655 298327 : case 'i':
6656 298327 : if (combine_inputs)
6657 : {
6658 : /* We are going to expand `%i' into `@FILE', where FILE
6659 : is a newly-created temporary filename. The filenames
6660 : that would usually be expanded in place of %o will be
6661 : written to the temporary file. */
6662 32754 : if (at_file_supplied)
6663 13745 : open_at_file ();
6664 :
6665 79435 : for (i = 0; (int) i < n_infiles; i++)
6666 93362 : if (compile_input_file_p (&infiles[i]))
6667 : {
6668 41870 : store_arg (infiles[i].name, 0, 0);
6669 41870 : infiles[i].compiled = true;
6670 : }
6671 :
6672 32754 : if (at_file_supplied)
6673 13745 : close_at_file ();
6674 : }
6675 : else
6676 : {
6677 265573 : obstack_grow (&obstack, gcc_input_filename,
6678 : input_filename_length);
6679 265573 : arg_going = 1;
6680 : }
6681 : break;
6682 :
6683 230786 : case 'I':
6684 230786 : {
6685 230786 : struct spec_path info;
6686 :
6687 230786 : if (multilib_dir)
6688 : {
6689 6025 : do_spec_1 ("-imultilib", 1, NULL);
6690 : /* Make this a separate argument. */
6691 6025 : do_spec_1 (" ", 0, NULL);
6692 6025 : do_spec_1 (multilib_dir, 1, NULL);
6693 6025 : do_spec_1 (" ", 0, NULL);
6694 : }
6695 :
6696 230786 : if (multiarch_dir)
6697 : {
6698 0 : do_spec_1 ("-imultiarch", 1, NULL);
6699 : /* Make this a separate argument. */
6700 0 : do_spec_1 (" ", 0, NULL);
6701 0 : do_spec_1 (multiarch_dir, 1, NULL);
6702 0 : do_spec_1 (" ", 0, NULL);
6703 : }
6704 :
6705 230786 : if (gcc_exec_prefix)
6706 : {
6707 230786 : do_spec_1 ("-iprefix", 1, NULL);
6708 : /* Make this a separate argument. */
6709 230786 : do_spec_1 (" ", 0, NULL);
6710 230786 : do_spec_1 (gcc_exec_prefix, 1, NULL);
6711 230786 : do_spec_1 (" ", 0, NULL);
6712 : }
6713 :
6714 230786 : if (target_system_root_changed ||
6715 230786 : (target_system_root && target_sysroot_hdrs_suffix))
6716 : {
6717 0 : do_spec_1 ("-isysroot", 1, NULL);
6718 : /* Make this a separate argument. */
6719 0 : do_spec_1 (" ", 0, NULL);
6720 0 : do_spec_1 (target_system_root, 1, NULL);
6721 0 : if (target_sysroot_hdrs_suffix)
6722 0 : do_spec_1 (target_sysroot_hdrs_suffix, 1, NULL);
6723 0 : do_spec_1 (" ", 0, NULL);
6724 : }
6725 :
6726 230786 : info.option = "-isystem";
6727 230786 : info.append = "include";
6728 230786 : info.append_len = strlen (info.append);
6729 230786 : info.omit_relative = false;
6730 230786 : info.separate_options = true;
6731 230786 : info.realpaths = false;
6732 :
6733 230786 : for_each_path (&include_prefixes, false, info.append_len, info);
6734 :
6735 230786 : info.append = "include-fixed";
6736 230786 : if (*sysroot_hdrs_suffix_spec)
6737 0 : info.append = concat (info.append, dir_separator_str,
6738 : multilib_dir, NULL);
6739 230786 : else if (multiarch_dir)
6740 : {
6741 : /* For multiarch, search include-fixed/<multiarch-dir>
6742 : before include-fixed. */
6743 0 : info.append = concat (info.append, dir_separator_str,
6744 : multiarch_dir, NULL);
6745 0 : info.append_len = strlen (info.append);
6746 0 : for_each_path (&include_prefixes, false,
6747 : info.append_len, info);
6748 :
6749 0 : info.append = "include-fixed";
6750 : }
6751 230786 : info.append_len = strlen (info.append);
6752 230786 : for_each_path (&include_prefixes, false, info.append_len, info);
6753 : }
6754 230786 : break;
6755 :
6756 98145 : case 'o':
6757 : /* We are going to expand `%o' into `@FILE', where FILE
6758 : is a newly-created temporary filename. The filenames
6759 : that would usually be expanded in place of %o will be
6760 : written to the temporary file. */
6761 98145 : if (at_file_supplied)
6762 6 : open_at_file ();
6763 :
6764 434267 : for (i = 0; i < n_infiles + lang_specific_extra_outfiles; i++)
6765 336122 : if (outfiles[i])
6766 336082 : store_arg (outfiles[i], 0, 0);
6767 :
6768 98145 : if (at_file_supplied)
6769 6 : close_at_file ();
6770 : break;
6771 :
6772 4035 : case 'O':
6773 4035 : obstack_grow (&obstack, TARGET_OBJECT_SUFFIX, strlen (TARGET_OBJECT_SUFFIX));
6774 4035 : arg_going = 1;
6775 4035 : break;
6776 :
6777 554229 : case 's':
6778 554229 : this_is_library_file = 1;
6779 554229 : break;
6780 :
6781 0 : case 'T':
6782 0 : this_is_linker_script = 1;
6783 0 : break;
6784 :
6785 467 : case 'V':
6786 467 : outfiles[input_file_number] = NULL;
6787 467 : break;
6788 :
6789 103134 : case 'w':
6790 103134 : this_is_output_file = 1;
6791 103134 : break;
6792 :
6793 181187 : case 'W':
6794 181187 : {
6795 181187 : unsigned int cur_index = argbuf.length ();
6796 : /* Handle the {...} following the %W. */
6797 181187 : if (*p != '{')
6798 0 : fatal_error (input_location,
6799 : "spec %qs has invalid %<%%W%c%>", spec, *p);
6800 181187 : p = handle_braces (p + 1);
6801 181187 : if (p == 0)
6802 : return -1;
6803 181187 : end_going_arg ();
6804 : /* If any args were output, mark the last one for deletion
6805 : on failure. */
6806 362374 : if (argbuf.length () != cur_index)
6807 178011 : record_temp_file (argbuf.last (), 0, 1);
6808 : break;
6809 : }
6810 :
6811 313191 : case '@':
6812 : /* Handle the {...} following the %@. */
6813 313191 : if (*p != '{')
6814 0 : fatal_error (input_location,
6815 : "spec %qs has invalid %<%%@%c%>", spec, *p);
6816 313191 : if (at_file_supplied)
6817 141 : open_at_file ();
6818 313191 : p = handle_braces (p + 1);
6819 313191 : if (at_file_supplied)
6820 141 : close_at_file ();
6821 313191 : if (p == 0)
6822 : return -1;
6823 : break;
6824 :
6825 : /* %x{OPTION} records OPTION for %X to output. */
6826 0 : case 'x':
6827 0 : {
6828 0 : const char *p1 = p;
6829 0 : char *string;
6830 :
6831 : /* Skip past the option value and make a copy. */
6832 0 : if (*p != '{')
6833 0 : fatal_error (input_location,
6834 : "spec %qs has invalid %<%%x%c%>", spec, *p);
6835 0 : while (*p++ != '}')
6836 : ;
6837 0 : string = save_string (p1 + 1, p - p1 - 2);
6838 :
6839 : /* See if we already recorded this option. */
6840 0 : for (const char *opt : linker_options)
6841 0 : if (! strcmp (string, opt))
6842 : {
6843 0 : free (string);
6844 0 : return 0;
6845 : }
6846 :
6847 : /* This option is new; add it. */
6848 0 : add_linker_option (string, strlen (string));
6849 0 : free (string);
6850 : }
6851 0 : break;
6852 :
6853 : /* Dump out the options accumulated previously using %x. */
6854 98145 : case 'X':
6855 98145 : do_specs_vec (linker_options);
6856 98145 : break;
6857 :
6858 : /* Dump out the options accumulated previously using -Wa,. */
6859 169314 : case 'Y':
6860 169314 : do_specs_vec (assembler_options);
6861 169314 : break;
6862 :
6863 : /* Dump out the options accumulated previously using -Wp,. */
6864 215046 : case 'Z':
6865 215046 : do_specs_vec (preprocessor_options);
6866 215046 : break;
6867 :
6868 : /* Here are digits and numbers that just process
6869 : a certain constant string as a spec. */
6870 :
6871 295225 : case '1':
6872 295225 : value = do_spec_1 (cc1_spec, 0, NULL);
6873 295225 : if (value != 0)
6874 : return value;
6875 : break;
6876 :
6877 99766 : case '2':
6878 99766 : value = do_spec_1 (cc1plus_spec, 0, NULL);
6879 99766 : if (value != 0)
6880 : return value;
6881 : break;
6882 :
6883 169314 : case 'a':
6884 169314 : value = do_spec_1 (asm_spec, 0, NULL);
6885 169314 : if (value != 0)
6886 : return value;
6887 : break;
6888 :
6889 169314 : case 'A':
6890 169314 : value = do_spec_1 (asm_final_spec, 0, NULL);
6891 169314 : if (value != 0)
6892 : return value;
6893 : break;
6894 :
6895 215046 : case 'C':
6896 215046 : {
6897 115412 : const char *const spec
6898 215046 : = (input_file_compiler->cpp_spec
6899 215046 : ? input_file_compiler->cpp_spec
6900 : : cpp_spec);
6901 215046 : value = do_spec_1 (spec, 0, NULL);
6902 215046 : if (value != 0)
6903 : return value;
6904 : }
6905 : break;
6906 :
6907 97940 : case 'E':
6908 97940 : value = do_spec_1 (endfile_spec, 0, NULL);
6909 97940 : if (value != 0)
6910 : return value;
6911 : break;
6912 :
6913 98145 : case 'l':
6914 98145 : value = do_spec_1 (link_spec, 0, NULL);
6915 98145 : if (value != 0)
6916 : return value;
6917 : break;
6918 :
6919 190338 : case 'L':
6920 190338 : value = do_spec_1 (lib_spec, 0, NULL);
6921 190338 : if (value != 0)
6922 : return value;
6923 : break;
6924 :
6925 0 : case 'M':
6926 0 : if (multilib_os_dir == NULL)
6927 0 : obstack_1grow (&obstack, '.');
6928 : else
6929 0 : obstack_grow (&obstack, multilib_os_dir,
6930 : strlen (multilib_os_dir));
6931 : break;
6932 :
6933 380482 : case 'G':
6934 380482 : value = do_spec_1 (libgcc_spec, 0, NULL);
6935 380482 : if (value != 0)
6936 : return value;
6937 : break;
6938 :
6939 0 : case 'R':
6940 : /* We assume there is a directory
6941 : separator at the end of this string. */
6942 0 : if (target_system_root)
6943 : {
6944 0 : obstack_grow (&obstack, target_system_root,
6945 : strlen (target_system_root));
6946 0 : if (target_sysroot_suffix)
6947 0 : obstack_grow (&obstack, target_sysroot_suffix,
6948 : strlen (target_sysroot_suffix));
6949 : }
6950 : break;
6951 :
6952 97940 : case 'S':
6953 97940 : value = do_spec_1 (startfile_spec, 0, NULL);
6954 97940 : if (value != 0)
6955 : return value;
6956 : break;
6957 :
6958 : /* Here we define characters other than letters and digits. */
6959 :
6960 41410084 : case '{':
6961 41410084 : p = handle_braces (p);
6962 41410084 : if (p == 0)
6963 : return -1;
6964 : break;
6965 :
6966 452525 : case ':':
6967 452525 : p = handle_spec_function (p, NULL, soft_matched_part);
6968 452525 : if (p == 0)
6969 : return -1;
6970 : break;
6971 :
6972 0 : case '%':
6973 0 : obstack_1grow (&obstack, '%');
6974 0 : break;
6975 :
6976 : case '.':
6977 : {
6978 : unsigned len = 0;
6979 :
6980 11898 : while (p[len] && p[len] != ' ' && p[len] != '%')
6981 5967 : len++;
6982 5931 : suffix_subst = save_string (p - 1, len + 1);
6983 5931 : p += len;
6984 : }
6985 5931 : break;
6986 :
6987 : /* Henceforth ignore the option(s) matching the pattern
6988 : after the %<. */
6989 1524129 : case '<':
6990 1524129 : case '>':
6991 1524129 : {
6992 1524129 : unsigned len = 0;
6993 1524129 : int have_wildcard = 0;
6994 1524129 : int i;
6995 1524129 : int switch_option;
6996 :
6997 1524129 : if (c == '>')
6998 1524129 : switch_option = SWITCH_IGNORE | SWITCH_KEEP_FOR_GCC;
6999 : else
7000 1524107 : switch_option = SWITCH_IGNORE;
7001 :
7002 18413165 : while (p[len] && p[len] != ' ' && p[len] != '\t')
7003 16889036 : len++;
7004 :
7005 1524129 : if (p[len-1] == '*')
7006 16199 : have_wildcard = 1;
7007 :
7008 36236310 : for (i = 0; i < n_switches; i++)
7009 34712181 : if (!strncmp (switches[i].part1, p, len - have_wildcard)
7010 51482 : && (have_wildcard || switches[i].part1[len] == '\0'))
7011 : {
7012 51209 : switches[i].live_cond |= switch_option;
7013 : /* User switch be validated from validate_all_switches.
7014 : when the definition is seen from the spec file.
7015 : If not defined anywhere, will be rejected. */
7016 51209 : if (switches[i].known)
7017 51209 : switches[i].validated = true;
7018 : }
7019 :
7020 : p += len;
7021 : }
7022 : break;
7023 :
7024 6882 : case '*':
7025 6882 : if (soft_matched_part)
7026 : {
7027 6882 : if (soft_matched_part[0])
7028 371 : do_spec_1 (soft_matched_part, 1, NULL);
7029 : /* Only insert a space after the substitution if it is at the
7030 : end of the current sequence. So if:
7031 :
7032 : "%{foo=*:bar%*}%{foo=*:one%*two}"
7033 :
7034 : matches -foo=hello then it will produce:
7035 :
7036 : barhello onehellotwo
7037 : */
7038 6882 : if (*p == 0 || *p == '}')
7039 6882 : do_spec_1 (" ", 0, NULL);
7040 : }
7041 : else
7042 : /* Catch the case where a spec string contains something like
7043 : '%{foo:%*}'. i.e. there is no * in the pattern on the left
7044 : hand side of the :. */
7045 0 : error ("spec failure: %<%%*%> has not been initialized by pattern match");
7046 : break;
7047 :
7048 : /* Process a string found as the value of a spec given by name.
7049 : This feature allows individual machine descriptions
7050 : to add and use their own specs. */
7051 : case '(':
7052 : {
7053 34367921 : const char *name = p;
7054 : struct spec_list *sl;
7055 : int len;
7056 :
7057 : /* The string after the S/P is the name of a spec that is to be
7058 : processed. */
7059 34367921 : while (*p && *p != ')')
7060 31718280 : p++;
7061 :
7062 : /* See if it's in the list. */
7063 36306290 : for (len = p - name, sl = specs; sl; sl = sl->next)
7064 36306290 : if (sl->name_len == len && !strncmp (sl->name, name, len))
7065 : {
7066 2649641 : name = *(sl->ptr_spec);
7067 : #ifdef DEBUG_SPECS
7068 : fnotice (stderr, "Processing spec (%s), which is '%s'\n",
7069 : sl->name, name);
7070 : #endif
7071 2649641 : break;
7072 : }
7073 :
7074 2649641 : if (sl)
7075 : {
7076 2649641 : value = do_spec_1 (name, 0, NULL);
7077 2649641 : if (value != 0)
7078 : return value;
7079 : }
7080 :
7081 : /* Discard the closing paren. */
7082 2643857 : if (*p)
7083 2643857 : p++;
7084 : }
7085 : break;
7086 :
7087 9 : case '"':
7088 : /* End a previous argument, if there is one, then issue an
7089 : empty argument. */
7090 9 : end_going_arg ();
7091 9 : arg_going = 1;
7092 9 : end_going_arg ();
7093 9 : break;
7094 :
7095 0 : default:
7096 0 : error ("spec failure: unrecognized spec option %qc", c);
7097 0 : break;
7098 : }
7099 : break;
7100 :
7101 0 : case '\\':
7102 : /* Backslash: treat next character as ordinary. */
7103 0 : c = *p++;
7104 :
7105 : /* When adding more cases that previously matched default, make
7106 : sure to adjust quote_spec_char_p as well. */
7107 :
7108 : /* Fall through. */
7109 370697722 : default:
7110 : /* Ordinary character: put it into the current argument. */
7111 370697722 : obstack_1grow (&obstack, c);
7112 370697722 : arg_going = 1;
7113 : }
7114 :
7115 : /* End of string. If we are processing a spec function, we need to
7116 : end any pending argument. */
7117 54310886 : if (processing_spec_function)
7118 4629020 : end_going_arg ();
7119 :
7120 : return 0;
7121 : }
7122 :
7123 : /* Look up a spec function. */
7124 :
7125 : static const struct spec_function *
7126 2132631 : lookup_spec_function (const char *name)
7127 : {
7128 2132631 : const struct spec_function *sf;
7129 :
7130 25547998 : for (sf = static_spec_functions; sf->name != NULL; sf++)
7131 25547998 : if (strcmp (sf->name, name) == 0)
7132 : return sf;
7133 :
7134 : return NULL;
7135 : }
7136 :
7137 : /* Evaluate a spec function. */
7138 :
7139 : static const char *
7140 2132631 : eval_spec_function (const char *func, const char *args,
7141 : const char *soft_matched_part)
7142 : {
7143 2132631 : const struct spec_function *sf;
7144 2132631 : const char *funcval;
7145 :
7146 : /* Saved spec processing context. */
7147 2132631 : vec<const_char_p> save_argbuf;
7148 :
7149 2132631 : int save_arg_going;
7150 2132631 : int save_delete_this_arg;
7151 2132631 : int save_this_is_output_file;
7152 2132631 : int save_this_is_library_file;
7153 2132631 : int save_input_from_pipe;
7154 2132631 : int save_this_is_linker_script;
7155 2132631 : const char *save_suffix_subst;
7156 :
7157 2132631 : int save_growing_size;
7158 2132631 : void *save_growing_value = NULL;
7159 :
7160 2132631 : sf = lookup_spec_function (func);
7161 2132631 : if (sf == NULL)
7162 0 : fatal_error (input_location, "unknown spec function %qs", func);
7163 :
7164 : /* Push the spec processing context. */
7165 2132631 : save_argbuf = argbuf;
7166 :
7167 2132631 : save_arg_going = arg_going;
7168 2132631 : save_delete_this_arg = delete_this_arg;
7169 2132631 : save_this_is_output_file = this_is_output_file;
7170 2132631 : save_this_is_library_file = this_is_library_file;
7171 2132631 : save_this_is_linker_script = this_is_linker_script;
7172 2132631 : save_input_from_pipe = input_from_pipe;
7173 2132631 : save_suffix_subst = suffix_subst;
7174 :
7175 : /* If we have some object growing now, finalize it so the args and function
7176 : eval proceed from a cleared context. This is needed to prevent the first
7177 : constructed arg from mistakenly including the growing value. We'll push
7178 : this value back on the obstack once the function evaluation is done, to
7179 : restore a consistent processing context for our caller. This is fine as
7180 : the address of growing objects isn't guaranteed to remain stable until
7181 : they are finalized, and we expect this situation to be rare enough for
7182 : the extra copy not to be an issue. */
7183 2132631 : save_growing_size = obstack_object_size (&obstack);
7184 2132631 : if (save_growing_size > 0)
7185 42675 : save_growing_value = obstack_finish (&obstack);
7186 :
7187 : /* Create a new spec processing context, and build the function
7188 : arguments. */
7189 :
7190 2132631 : alloc_args ();
7191 2132631 : if (do_spec_2 (args, soft_matched_part) < 0)
7192 0 : fatal_error (input_location, "error in arguments to spec function %qs",
7193 : func);
7194 :
7195 : /* argbuf_index is an index for the next argument to be inserted, and
7196 : so contains the count of the args already inserted. */
7197 :
7198 6397893 : funcval = (*sf->func) (argbuf.length (),
7199 : argbuf.address ());
7200 :
7201 : /* Pop the spec processing context. */
7202 2132631 : argbuf.release ();
7203 2132631 : argbuf = save_argbuf;
7204 :
7205 2132631 : arg_going = save_arg_going;
7206 2132631 : delete_this_arg = save_delete_this_arg;
7207 2132631 : this_is_output_file = save_this_is_output_file;
7208 2132631 : this_is_library_file = save_this_is_library_file;
7209 2132631 : this_is_linker_script = save_this_is_linker_script;
7210 2132631 : input_from_pipe = save_input_from_pipe;
7211 2132631 : suffix_subst = save_suffix_subst;
7212 :
7213 2132631 : if (save_growing_size > 0)
7214 42675 : obstack_grow (&obstack, save_growing_value, save_growing_size);
7215 :
7216 2132631 : return funcval;
7217 : }
7218 :
7219 : /* Handle a spec function call of the form:
7220 :
7221 : %:function(args)
7222 :
7223 : ARGS is processed as a spec in a separate context and split into an
7224 : argument vector in the normal fashion. The function returns a string
7225 : containing a spec which we then process in the caller's context, or
7226 : NULL if no processing is required.
7227 :
7228 : If RETVAL_NONNULL is not NULL, then store a bool whether function
7229 : returned non-NULL.
7230 :
7231 : SOFT_MATCHED_PART holds the current value of a matched * pattern, which
7232 : may be re-expanded with a %* as part of the function arguments. */
7233 :
7234 : static const char *
7235 2132631 : handle_spec_function (const char *p, bool *retval_nonnull,
7236 : const char *soft_matched_part)
7237 : {
7238 2132631 : char *func, *args;
7239 2132631 : const char *endp, *funcval;
7240 2132631 : int count;
7241 :
7242 2132631 : processing_spec_function++;
7243 :
7244 : /* Get the function name. */
7245 19758162 : for (endp = p; *endp != '\0'; endp++)
7246 : {
7247 19758162 : if (*endp == '(') /* ) */
7248 : break;
7249 : /* Only allow [A-Za-z0-9], -, and _ in function names. */
7250 17625531 : if (!ISALNUM (*endp) && !(*endp == '-' || *endp == '_'))
7251 0 : fatal_error (input_location, "malformed spec function name");
7252 : }
7253 2132631 : if (*endp != '(') /* ) */
7254 0 : fatal_error (input_location, "no arguments for spec function");
7255 2132631 : func = save_string (p, endp - p);
7256 2132631 : p = ++endp;
7257 :
7258 : /* Get the arguments. */
7259 26060265 : for (count = 0; *endp != '\0'; endp++)
7260 : {
7261 : /* ( */
7262 26060265 : if (*endp == ')')
7263 : {
7264 2225031 : if (count == 0)
7265 : break;
7266 92400 : count--;
7267 : }
7268 23835234 : else if (*endp == '(') /* ) */
7269 92400 : count++;
7270 : }
7271 : /* ( */
7272 2132631 : if (*endp != ')')
7273 0 : fatal_error (input_location, "malformed spec function arguments");
7274 2132631 : args = save_string (p, endp - p);
7275 2132631 : p = ++endp;
7276 :
7277 : /* p now points to just past the end of the spec function expression. */
7278 :
7279 2132631 : funcval = eval_spec_function (func, args, soft_matched_part);
7280 2132631 : if (funcval != NULL && do_spec_1 (funcval, 0, NULL) < 0)
7281 : p = NULL;
7282 2132631 : if (retval_nonnull)
7283 1680106 : *retval_nonnull = funcval != NULL;
7284 :
7285 2132631 : free (func);
7286 2132631 : free (args);
7287 :
7288 2132631 : processing_spec_function--;
7289 :
7290 2132631 : return p;
7291 : }
7292 :
7293 : /* Inline subroutine of handle_braces. Returns true if the current
7294 : input suffix matches the atom bracketed by ATOM and END_ATOM. */
7295 : static inline bool
7296 0 : input_suffix_matches (const char *atom, const char *end_atom)
7297 : {
7298 0 : return (input_suffix
7299 0 : && !strncmp (input_suffix, atom, end_atom - atom)
7300 0 : && input_suffix[end_atom - atom] == '\0');
7301 : }
7302 :
7303 : /* Subroutine of handle_braces. Returns true if the current
7304 : input file's spec name matches the atom bracketed by ATOM and END_ATOM. */
7305 : static bool
7306 0 : input_spec_matches (const char *atom, const char *end_atom)
7307 : {
7308 0 : return (input_file_compiler
7309 0 : && input_file_compiler->suffix
7310 0 : && input_file_compiler->suffix[0] != '\0'
7311 0 : && !strncmp (input_file_compiler->suffix + 1, atom,
7312 0 : end_atom - atom)
7313 0 : && input_file_compiler->suffix[end_atom - atom + 1] == '\0');
7314 : }
7315 :
7316 : /* Subroutine of handle_braces. Returns true if a switch
7317 : matching the atom bracketed by ATOM and END_ATOM appeared on the
7318 : command line. */
7319 : static bool
7320 39773677 : switch_matches (const char *atom, const char *end_atom, int starred)
7321 : {
7322 39773677 : int i;
7323 39773677 : int len = end_atom - atom;
7324 39773677 : int plen = starred ? len : -1;
7325 :
7326 930726397 : for (i = 0; i < n_switches; i++)
7327 892366688 : if (!strncmp (switches[i].part1, atom, len)
7328 2371002 : && (starred || switches[i].part1[len] == '\0')
7329 893781289 : && check_live_switch (i, plen))
7330 : return true;
7331 :
7332 : /* Check if a switch with separated form matching the atom.
7333 : We check -D and -U switches. */
7334 890952721 : else if (switches[i].args != 0)
7335 : {
7336 205164694 : if ((*switches[i].part1 == 'D' || *switches[i].part1 == 'U')
7337 8849611 : && *switches[i].part1 == atom[0])
7338 : {
7339 1 : if (!strncmp (switches[i].args[0], &atom[1], len - 1)
7340 1 : && (starred || (switches[i].part1[1] == '\0'
7341 1 : && switches[i].args[0][len - 1] == '\0'))
7342 2 : && check_live_switch (i, (starred ? 1 : -1)))
7343 : return true;
7344 : }
7345 : }
7346 :
7347 : return false;
7348 : }
7349 :
7350 : /* Inline subroutine of handle_braces. Mark all of the switches which
7351 : match ATOM (extends to END_ATOM; STARRED indicates whether there
7352 : was a star after the atom) for later processing. */
7353 : static inline void
7354 11575141 : mark_matching_switches (const char *atom, const char *end_atom, int starred)
7355 : {
7356 11575141 : int i;
7357 11575141 : int len = end_atom - atom;
7358 11575141 : int plen = starred ? len : -1;
7359 :
7360 274662263 : for (i = 0; i < n_switches; i++)
7361 263087122 : if (!strncmp (switches[i].part1, atom, len)
7362 6551634 : && (starred || switches[i].part1[len] == '\0')
7363 269416521 : && check_live_switch (i, plen))
7364 6278200 : switches[i].ordering = 1;
7365 11575141 : }
7366 :
7367 : /* Inline subroutine of handle_braces. Process all the currently
7368 : marked switches through give_switch, and clear the marks. */
7369 : static inline void
7370 10044328 : process_marked_switches (void)
7371 : {
7372 10044328 : int i;
7373 :
7374 238288037 : for (i = 0; i < n_switches; i++)
7375 228243709 : if (switches[i].ordering == 1)
7376 : {
7377 6278200 : switches[i].ordering = 0;
7378 6278200 : give_switch (i, 0);
7379 : }
7380 10044328 : }
7381 :
7382 : /* Handle a %{ ... } construct. P points just inside the leading {.
7383 : Returns a pointer one past the end of the brace block, or 0
7384 : if we call do_spec_1 and that returns -1. */
7385 :
7386 : static const char *
7387 41904462 : handle_braces (const char *p)
7388 : {
7389 41904462 : const char *atom, *end_atom;
7390 41904462 : const char *d_atom = NULL, *d_end_atom = NULL;
7391 41904462 : char *esc_buf = NULL, *d_esc_buf = NULL;
7392 41904462 : int esc;
7393 41904462 : const char *orig = p;
7394 :
7395 41904462 : bool a_is_suffix;
7396 41904462 : bool a_is_spectype;
7397 41904462 : bool a_is_starred;
7398 41904462 : bool a_is_negated;
7399 41904462 : bool a_matched;
7400 :
7401 41904462 : bool a_must_be_last = false;
7402 41904462 : bool ordered_set = false;
7403 41904462 : bool disjunct_set = false;
7404 41904462 : bool disj_matched = false;
7405 41904462 : bool disj_starred = true;
7406 41904462 : bool n_way_choice = false;
7407 41904462 : bool n_way_matched = false;
7408 :
7409 : #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
7410 :
7411 55691319 : do
7412 : {
7413 55691319 : if (a_must_be_last)
7414 0 : goto invalid;
7415 :
7416 : /* Scan one "atom" (S in the description above of %{}, possibly
7417 : with '!', '.', '@', ',', or '*' modifiers). */
7418 55691319 : a_matched = false;
7419 55691319 : a_is_suffix = false;
7420 55691319 : a_is_starred = false;
7421 55691319 : a_is_negated = false;
7422 55691319 : a_is_spectype = false;
7423 :
7424 63427083 : SKIP_WHITE ();
7425 55691319 : if (*p == '!')
7426 13453469 : p++, a_is_negated = true;
7427 :
7428 55691319 : SKIP_WHITE ();
7429 55691319 : if (*p == '%' && p[1] == ':')
7430 : {
7431 1680106 : atom = NULL;
7432 1680106 : end_atom = NULL;
7433 1680106 : p = handle_spec_function (p + 2, &a_matched, NULL);
7434 : }
7435 : else
7436 : {
7437 54011213 : if (*p == '.')
7438 0 : p++, a_is_suffix = true;
7439 54011213 : else if (*p == ',')
7440 0 : p++, a_is_spectype = true;
7441 :
7442 54011213 : atom = p;
7443 54011213 : esc = 0;
7444 54011213 : while (ISIDNUM (*p) || *p == '-' || *p == '+' || *p == '='
7445 407067848 : || *p == ',' || *p == '.' || *p == '@' || *p == '\\')
7446 : {
7447 353056635 : if (*p == '\\')
7448 : {
7449 0 : p++;
7450 0 : if (!*p)
7451 0 : fatal_error (input_location,
7452 : "braced spec %qs ends in escape", orig);
7453 0 : esc++;
7454 : }
7455 353056635 : p++;
7456 : }
7457 54011213 : end_atom = p;
7458 :
7459 54011213 : if (esc)
7460 : {
7461 0 : const char *ap;
7462 0 : char *ep;
7463 :
7464 0 : if (esc_buf && esc_buf != d_esc_buf)
7465 0 : free (esc_buf);
7466 0 : esc_buf = NULL;
7467 0 : ep = esc_buf = (char *) xmalloc (end_atom - atom - esc + 1);
7468 0 : for (ap = atom; ap != end_atom; ap++, ep++)
7469 : {
7470 0 : if (*ap == '\\')
7471 0 : ap++;
7472 0 : *ep = *ap;
7473 : }
7474 0 : *ep = '\0';
7475 0 : atom = esc_buf;
7476 0 : end_atom = ep;
7477 : }
7478 :
7479 54011213 : if (*p == '*')
7480 12203600 : p++, a_is_starred = 1;
7481 : }
7482 :
7483 55691319 : SKIP_WHITE ();
7484 55691319 : switch (*p)
7485 : {
7486 11575141 : case '&': case '}':
7487 : /* Substitute the switch(es) indicated by the current atom. */
7488 11575141 : ordered_set = true;
7489 11575141 : if (disjunct_set || n_way_choice || a_is_negated || a_is_suffix
7490 11575141 : || a_is_spectype || atom == end_atom)
7491 0 : goto invalid;
7492 :
7493 11575141 : mark_matching_switches (atom, end_atom, a_is_starred);
7494 :
7495 11575141 : if (*p == '}')
7496 10044328 : process_marked_switches ();
7497 : break;
7498 :
7499 44116178 : case '|': case ':':
7500 : /* Substitute some text if the current atom appears as a switch
7501 : or suffix. */
7502 44116178 : disjunct_set = true;
7503 44116178 : if (ordered_set)
7504 0 : goto invalid;
7505 :
7506 44116178 : if (atom && atom == end_atom)
7507 : {
7508 1819213 : if (!n_way_choice || disj_matched || *p == '|'
7509 1819213 : || a_is_negated || a_is_suffix || a_is_spectype
7510 1819213 : || a_is_starred)
7511 0 : goto invalid;
7512 :
7513 : /* An empty term may appear as the last choice of an
7514 : N-way choice set; it means "otherwise". */
7515 1819213 : a_must_be_last = true;
7516 1819213 : disj_matched = !n_way_matched;
7517 1819213 : disj_starred = false;
7518 : }
7519 : else
7520 : {
7521 42296965 : if ((a_is_suffix || a_is_spectype) && a_is_starred)
7522 0 : goto invalid;
7523 :
7524 42296965 : if (!a_is_starred)
7525 36529321 : disj_starred = false;
7526 :
7527 : /* Don't bother testing this atom if we already have a
7528 : match. */
7529 42296965 : if (!disj_matched && !n_way_matched)
7530 : {
7531 41250999 : if (atom == NULL)
7532 : /* a_matched is already set by handle_spec_function. */;
7533 39675528 : else if (a_is_suffix)
7534 0 : a_matched = input_suffix_matches (atom, end_atom);
7535 39675528 : else if (a_is_spectype)
7536 0 : a_matched = input_spec_matches (atom, end_atom);
7537 : else
7538 39675528 : a_matched = switch_matches (atom, end_atom, a_is_starred);
7539 :
7540 41250999 : if (a_matched != a_is_negated)
7541 : {
7542 13313223 : disj_matched = true;
7543 13313223 : d_atom = atom;
7544 13313223 : d_end_atom = end_atom;
7545 13313223 : d_esc_buf = esc_buf;
7546 : }
7547 : }
7548 : }
7549 :
7550 44116178 : if (*p == ':')
7551 : {
7552 : /* Found the body, that is, the text to substitute if the
7553 : current disjunction matches. */
7554 69880996 : p = process_brace_body (p + 1, d_atom, d_end_atom, disj_starred,
7555 34940498 : disj_matched && !n_way_matched);
7556 34940498 : if (p == 0)
7557 38108 : goto done;
7558 :
7559 : /* If we have an N-way choice, reset state for the next
7560 : disjunction. */
7561 34902390 : if (*p == ';')
7562 : {
7563 3080364 : n_way_choice = true;
7564 3080364 : n_way_matched |= disj_matched;
7565 3080364 : disj_matched = false;
7566 3080364 : disj_starred = true;
7567 3080364 : d_atom = d_end_atom = NULL;
7568 : }
7569 : }
7570 : break;
7571 :
7572 0 : default:
7573 0 : goto invalid;
7574 : }
7575 : }
7576 55653211 : while (*p++ != '}');
7577 :
7578 41866354 : done:
7579 41904462 : if (d_esc_buf && d_esc_buf != esc_buf)
7580 0 : free (d_esc_buf);
7581 41904462 : if (esc_buf)
7582 0 : free (esc_buf);
7583 :
7584 41904462 : return p;
7585 :
7586 0 : invalid:
7587 0 : fatal_error (input_location, "braced spec %qs is invalid at %qc", orig, *p);
7588 :
7589 : #undef SKIP_WHITE
7590 : }
7591 :
7592 : /* Subroutine of handle_braces. Scan and process a brace substitution body
7593 : (X in the description of %{} syntax). P points one past the colon;
7594 : ATOM and END_ATOM bracket the first atom which was found to be true
7595 : (present) in the current disjunction; STARRED indicates whether all
7596 : the atoms in the current disjunction were starred (for syntax validation);
7597 : MATCHED indicates whether the disjunction matched or not, and therefore
7598 : whether or not the body is to be processed through do_spec_1 or just
7599 : skipped. Returns a pointer to the closing } or ;, or 0 if do_spec_1
7600 : returns -1. */
7601 :
7602 : static const char *
7603 34940498 : process_brace_body (const char *p, const char *atom, const char *end_atom,
7604 : int starred, int matched)
7605 : {
7606 34940498 : const char *body, *end_body;
7607 34940498 : unsigned int nesting_level;
7608 34940498 : bool have_subst = false;
7609 :
7610 : /* Locate the closing } or ;, honoring nested braces.
7611 : Trim trailing whitespace. */
7612 34940498 : body = p;
7613 34940498 : nesting_level = 1;
7614 11793128582 : for (;;)
7615 : {
7616 5914034540 : if (*p == '{')
7617 176258432 : nesting_level++;
7618 5737776108 : else if (*p == '}')
7619 : {
7620 208118566 : if (!--nesting_level)
7621 : break;
7622 : }
7623 5529657542 : else if (*p == ';' && nesting_level == 1)
7624 : break;
7625 5526577178 : else if (*p == '%' && p[1] == '*' && nesting_level == 1)
7626 : have_subst = true;
7627 5525764753 : else if (*p == '\0')
7628 0 : goto invalid;
7629 5879094042 : p++;
7630 : }
7631 :
7632 : end_body = p;
7633 37791452 : while (end_body[-1] == ' ' || end_body[-1] == '\t')
7634 2850954 : end_body--;
7635 :
7636 34940498 : if (have_subst && !starred)
7637 0 : goto invalid;
7638 :
7639 34940498 : if (matched)
7640 : {
7641 : /* Copy the substitution body to permanent storage and execute it.
7642 : If have_subst is false, this is a simple matter of running the
7643 : body through do_spec_1... */
7644 14294538 : char *string = save_string (body, end_body - body);
7645 14294538 : if (!have_subst)
7646 : {
7647 14287660 : if (do_spec_1 (string, 0, NULL) < 0)
7648 : {
7649 38108 : free (string);
7650 38108 : return 0;
7651 : }
7652 : }
7653 : else
7654 : {
7655 : /* ... but if have_subst is true, we have to process the
7656 : body once for each matching switch, with %* set to the
7657 : variant part of the switch. */
7658 6878 : unsigned int hard_match_len = end_atom - atom;
7659 6878 : int i;
7660 :
7661 275230 : for (i = 0; i < n_switches; i++)
7662 268352 : if (!strncmp (switches[i].part1, atom, hard_match_len)
7663 268352 : && check_live_switch (i, hard_match_len))
7664 : {
7665 6882 : if (do_spec_1 (string, 0,
7666 : &switches[i].part1[hard_match_len]) < 0)
7667 : {
7668 0 : free (string);
7669 0 : return 0;
7670 : }
7671 : /* Pass any arguments this switch has. */
7672 6882 : give_switch (i, 1);
7673 6882 : suffix_subst = NULL;
7674 : }
7675 : }
7676 14256430 : free (string);
7677 : }
7678 :
7679 : return p;
7680 :
7681 0 : invalid:
7682 0 : fatal_error (input_location, "braced spec body %qs is invalid", body);
7683 : }
7684 :
7685 : /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
7686 : on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
7687 : spec, or -1 if either exact match or %* is used.
7688 :
7689 : A -O switch is obsoleted by a later -O switch. A -f, -g, -m, or -W switch
7690 : whose value does not begin with "no-" is obsoleted by the same value
7691 : with the "no-", similarly for a switch with the "no-" prefix. */
7692 :
7693 : static int
7694 7750883 : check_live_switch (int switchnum, int prefix_length)
7695 : {
7696 7750883 : const char *name = switches[switchnum].part1;
7697 7750883 : int i;
7698 :
7699 : /* If we already processed this switch and determined if it was
7700 : live or not, return our past determination. */
7701 7750883 : if (switches[switchnum].live_cond != 0)
7702 977429 : return ((switches[switchnum].live_cond & SWITCH_LIVE) != 0
7703 925614 : && (switches[switchnum].live_cond & SWITCH_FALSE) == 0
7704 1903043 : && (switches[switchnum].live_cond & SWITCH_IGNORE_PERMANENTLY)
7705 977429 : == 0);
7706 :
7707 : /* In the common case of {<at-most-one-letter>*}, a negating
7708 : switch would always match, so ignore that case. We will just
7709 : send the conflicting switches to the compiler phase. */
7710 6773454 : if (prefix_length >= 0 && prefix_length <= 1)
7711 : return 1;
7712 :
7713 : /* Now search for duplicate in a manner that depends on the name. */
7714 913769 : switch (*name)
7715 : {
7716 62 : case 'O':
7717 344 : for (i = switchnum + 1; i < n_switches; i++)
7718 287 : if (switches[i].part1[0] == 'O')
7719 : {
7720 5 : switches[switchnum].validated = true;
7721 5 : switches[switchnum].live_cond = SWITCH_FALSE;
7722 5 : return 0;
7723 : }
7724 : break;
7725 :
7726 298827 : case 'W': case 'f': case 'm': case 'g':
7727 298827 : if (startswith (name + 1, "no-"))
7728 : {
7729 : /* We have Xno-YYY, search for XYYY. */
7730 35569 : for (i = switchnum + 1; i < n_switches; i++)
7731 29907 : if (switches[i].part1[0] == name[0]
7732 5697 : && ! strcmp (&switches[i].part1[1], &name[4]))
7733 : {
7734 : /* --specs are validated with the validate_switches mechanism. */
7735 0 : if (switches[switchnum].known)
7736 0 : switches[switchnum].validated = true;
7737 0 : switches[switchnum].live_cond = SWITCH_FALSE;
7738 0 : return 0;
7739 : }
7740 : }
7741 : else
7742 : {
7743 : /* We have XYYY, search for Xno-YYY. */
7744 3067631 : for (i = switchnum + 1; i < n_switches; i++)
7745 2774466 : if (switches[i].part1[0] == name[0]
7746 1680190 : && switches[i].part1[1] == 'n'
7747 211660 : && switches[i].part1[2] == 'o'
7748 211659 : && switches[i].part1[3] == '-'
7749 211629 : && !strcmp (&switches[i].part1[4], &name[1]))
7750 : {
7751 : /* --specs are validated with the validate_switches mechanism. */
7752 0 : if (switches[switchnum].known)
7753 0 : switches[switchnum].validated = true;
7754 0 : switches[switchnum].live_cond = SWITCH_FALSE;
7755 0 : return 0;
7756 : }
7757 : }
7758 : break;
7759 : }
7760 :
7761 : /* Otherwise the switch is live. */
7762 913764 : switches[switchnum].live_cond |= SWITCH_LIVE;
7763 913764 : return 1;
7764 : }
7765 :
7766 : /* Pass a switch to the current accumulating command
7767 : in the same form that we received it.
7768 : SWITCHNUM identifies the switch; it is an index into
7769 : the vector of switches gcc received, which is `switches'.
7770 : This cannot fail since it never finishes a command line.
7771 :
7772 : If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument. */
7773 :
7774 : static void
7775 6285082 : give_switch (int switchnum, int omit_first_word)
7776 : {
7777 6285082 : if ((switches[switchnum].live_cond & SWITCH_IGNORE) != 0)
7778 : return;
7779 :
7780 6285071 : if (!omit_first_word)
7781 : {
7782 6278189 : do_spec_1 ("-", 0, NULL);
7783 6278189 : do_spec_1 (switches[switchnum].part1, 1, NULL);
7784 : }
7785 :
7786 6285071 : if (switches[switchnum].args != 0)
7787 : {
7788 : const char **p;
7789 2525346 : for (p = switches[switchnum].args; *p; p++)
7790 : {
7791 1262673 : const char *arg = *p;
7792 :
7793 1262673 : do_spec_1 (" ", 0, NULL);
7794 1262673 : if (suffix_subst)
7795 : {
7796 5931 : unsigned length = strlen (arg);
7797 5931 : int dot = 0;
7798 :
7799 11862 : while (length-- && !IS_DIR_SEPARATOR (arg[length]))
7800 11862 : if (arg[length] == '.')
7801 : {
7802 5931 : (const_cast<char *> (arg))[length] = 0;
7803 5931 : dot = 1;
7804 5931 : break;
7805 : }
7806 5931 : do_spec_1 (arg, 1, NULL);
7807 5931 : if (dot)
7808 5931 : (const_cast<char *> (arg))[length] = '.';
7809 5931 : do_spec_1 (suffix_subst, 1, NULL);
7810 : }
7811 : else
7812 1256742 : do_spec_1 (arg, 1, NULL);
7813 : }
7814 : }
7815 :
7816 6285071 : do_spec_1 (" ", 0, NULL);
7817 6285071 : switches[switchnum].validated = true;
7818 : }
7819 :
7820 : /* Print GCC configuration (e.g. version, thread model, target,
7821 : configuration_arguments) to a given FILE. */
7822 :
7823 : static void
7824 1658 : print_configuration (FILE *file)
7825 : {
7826 1658 : int n;
7827 1658 : const char *thrmod;
7828 :
7829 1658 : fnotice (file, "Target: %s\n", spec_machine);
7830 1658 : fnotice (file, "Configured with: %s\n", configuration_arguments);
7831 :
7832 : #ifdef THREAD_MODEL_SPEC
7833 : /* We could have defined THREAD_MODEL_SPEC to "%*" by default,
7834 : but there's no point in doing all this processing just to get
7835 : thread_model back. */
7836 : obstack_init (&obstack);
7837 : do_spec_1 (THREAD_MODEL_SPEC, 0, thread_model);
7838 : obstack_1grow (&obstack, '\0');
7839 : thrmod = XOBFINISH (&obstack, const char *);
7840 : #else
7841 1658 : thrmod = thread_model;
7842 : #endif
7843 :
7844 1658 : fnotice (file, "Thread model: %s\n", thrmod);
7845 1658 : fnotice (file, "Supported LTO compression algorithms: zlib");
7846 : #ifdef HAVE_ZSTD_H
7847 1658 : fnotice (file, " zstd");
7848 : #endif
7849 1658 : fnotice (file, "\n");
7850 :
7851 : /* compiler_version is truncated at the first space when initialized
7852 : from version string, so truncate version_string at the first space
7853 : before comparing. */
7854 13264 : for (n = 0; version_string[n]; n++)
7855 11606 : if (version_string[n] == ' ')
7856 : break;
7857 :
7858 1658 : if (! strncmp (version_string, compiler_version, n)
7859 1658 : && compiler_version[n] == 0)
7860 1658 : fnotice (file, "gcc version %s %s\n", version_string,
7861 : pkgversion_string);
7862 : else
7863 0 : fnotice (file, "gcc driver version %s %sexecuting gcc version %s\n",
7864 : version_string, pkgversion_string, compiler_version);
7865 :
7866 1658 : }
7867 :
7868 : #define RETRY_ICE_ATTEMPTS 3
7869 :
7870 : /* Returns true if FILE1 and FILE2 contain equivalent data, 0 otherwise.
7871 : If lines start with 0x followed by 1-16 lowercase hexadecimal digits
7872 : followed by a space, ignore anything before that space. These are
7873 : typically function addresses from libbacktrace and those can differ
7874 : due to ASLR. */
7875 :
7876 : static bool
7877 0 : files_equal_p (char *file1, char *file2)
7878 : {
7879 0 : FILE *f1 = fopen (file1, "rb");
7880 0 : FILE *f2 = fopen (file2, "rb");
7881 0 : char line1[256], line2[256];
7882 :
7883 0 : bool line_start = true;
7884 0 : while (fgets (line1, sizeof (line1), f1))
7885 : {
7886 0 : if (!fgets (line2, sizeof (line2), f2))
7887 0 : goto error;
7888 0 : char *p1 = line1, *p2 = line2;
7889 0 : if (line_start
7890 0 : && line1[0] == '0'
7891 0 : && line1[1] == 'x'
7892 0 : && line2[0] == '0'
7893 0 : && line2[1] == 'x')
7894 : {
7895 : int i, j;
7896 0 : for (i = 0; i < 16; ++i)
7897 0 : if (!ISXDIGIT (line1[2 + i]) || ISUPPER (line1[2 + i]))
7898 : break;
7899 0 : for (j = 0; j < 16; ++j)
7900 0 : if (!ISXDIGIT (line2[2 + j]) || ISUPPER (line2[2 + j]))
7901 : break;
7902 0 : if (i && line1[2 + i] == ' ' && j && line2[2 + j] == ' ')
7903 : {
7904 0 : p1 = line1 + i + 3;
7905 0 : p2 = line2 + j + 3;
7906 : }
7907 : }
7908 0 : if (strcmp (p1, p2) != 0)
7909 0 : goto error;
7910 0 : line_start = strchr (line1, '\n') != NULL;
7911 : }
7912 0 : if (fgets (line2, sizeof (line2), f2))
7913 0 : goto error;
7914 :
7915 0 : fclose (f1);
7916 0 : fclose (f2);
7917 0 : return 1;
7918 :
7919 0 : error:
7920 0 : fclose (f1);
7921 0 : fclose (f2);
7922 0 : return 0;
7923 : }
7924 :
7925 : /* Check that compiler's output doesn't differ across runs.
7926 : TEMP_STDOUT_FILES and TEMP_STDERR_FILES are arrays of files, containing
7927 : stdout and stderr for each compiler run. Return true if all of
7928 : TEMP_STDOUT_FILES and TEMP_STDERR_FILES are equivalent. */
7929 :
7930 : static bool
7931 0 : check_repro (char **temp_stdout_files, char **temp_stderr_files)
7932 : {
7933 0 : int i;
7934 0 : for (i = 0; i < RETRY_ICE_ATTEMPTS - 2; ++i)
7935 : {
7936 0 : if (!files_equal_p (temp_stdout_files[i], temp_stdout_files[i + 1])
7937 0 : || !files_equal_p (temp_stderr_files[i], temp_stderr_files[i + 1]))
7938 : {
7939 0 : fnotice (stderr, "The bug is not reproducible, so it is"
7940 : " likely a hardware or OS problem.\n");
7941 0 : break;
7942 : }
7943 : }
7944 0 : return i == RETRY_ICE_ATTEMPTS - 2;
7945 : }
7946 :
7947 : enum attempt_status {
7948 : ATTEMPT_STATUS_FAIL_TO_RUN,
7949 : ATTEMPT_STATUS_SUCCESS,
7950 : ATTEMPT_STATUS_ICE
7951 : };
7952 :
7953 :
7954 : /* Run compiler with arguments NEW_ARGV to reproduce the ICE, storing stdout
7955 : to OUT_TEMP and stderr to ERR_TEMP. If APPEND is TRUE, append to OUT_TEMP
7956 : and ERR_TEMP instead of truncating. If EMIT_SYSTEM_INFO is TRUE, also write
7957 : GCC configuration into to ERR_TEMP. Return ATTEMPT_STATUS_FAIL_TO_RUN if
7958 : compiler failed to run, ATTEMPT_STATUS_ICE if compiled ICE-ed and
7959 : ATTEMPT_STATUS_SUCCESS otherwise. */
7960 :
7961 : static enum attempt_status
7962 0 : run_attempt (const char **new_argv, const char *out_temp,
7963 : const char *err_temp, int emit_system_info, int append)
7964 : {
7965 :
7966 0 : if (emit_system_info)
7967 : {
7968 0 : FILE *file_out = fopen (err_temp, "a");
7969 0 : print_configuration (file_out);
7970 0 : fputs ("\n", file_out);
7971 0 : fclose (file_out);
7972 : }
7973 :
7974 0 : int exit_status;
7975 0 : const char *errmsg;
7976 0 : struct pex_obj *pex;
7977 0 : int err;
7978 0 : int pex_flags = PEX_USE_PIPES | PEX_LAST;
7979 0 : enum attempt_status status = ATTEMPT_STATUS_FAIL_TO_RUN;
7980 :
7981 0 : if (append)
7982 0 : pex_flags |= PEX_STDOUT_APPEND | PEX_STDERR_APPEND;
7983 :
7984 0 : pex = pex_init (PEX_USE_PIPES, new_argv[0], NULL);
7985 0 : if (!pex)
7986 : fatal_error (input_location, "%<pex_init%> failed: %m");
7987 :
7988 0 : errmsg = pex_run (pex, pex_flags, new_argv[0],
7989 0 : const_cast<char *const *> (&new_argv[1]),
7990 : out_temp, err_temp, &err);
7991 0 : if (errmsg != NULL)
7992 : {
7993 0 : errno = err;
7994 0 : fatal_error (input_location,
7995 : err ? G_ ("cannot execute %qs: %s: %m")
7996 : : G_ ("cannot execute %qs: %s"),
7997 : new_argv[0], errmsg);
7998 : }
7999 :
8000 0 : if (!pex_get_status (pex, 1, &exit_status))
8001 0 : goto out;
8002 :
8003 0 : switch (WEXITSTATUS (exit_status))
8004 : {
8005 : case ICE_EXIT_CODE:
8006 0 : status = ATTEMPT_STATUS_ICE;
8007 : break;
8008 :
8009 0 : case SUCCESS_EXIT_CODE:
8010 0 : status = ATTEMPT_STATUS_SUCCESS;
8011 0 : break;
8012 :
8013 0 : default:
8014 0 : ;
8015 : }
8016 :
8017 0 : out:
8018 0 : pex_free (pex);
8019 0 : return status;
8020 : }
8021 :
8022 : /* This routine reads lines from IN file, adds C++ style comments
8023 : at the beginning of each line and writes result into OUT. */
8024 :
8025 : static void
8026 0 : insert_comments (const char *file_in, const char *file_out)
8027 : {
8028 0 : FILE *in = fopen (file_in, "rb");
8029 0 : FILE *out = fopen (file_out, "wb");
8030 0 : char line[256];
8031 :
8032 0 : bool add_comment = true;
8033 0 : while (fgets (line, sizeof (line), in))
8034 : {
8035 0 : if (add_comment)
8036 0 : fputs ("// ", out);
8037 0 : fputs (line, out);
8038 0 : add_comment = strchr (line, '\n') != NULL;
8039 : }
8040 :
8041 0 : fclose (in);
8042 0 : fclose (out);
8043 0 : }
8044 :
8045 : /* This routine adds preprocessed source code into the given ERR_FILE.
8046 : To do this, it adds "-E" to NEW_ARGV and execute RUN_ATTEMPT routine to
8047 : add information in report file. RUN_ATTEMPT should return
8048 : ATTEMPT_STATUS_SUCCESS, in other case we cannot generate the report. */
8049 :
8050 : static void
8051 0 : do_report_bug (const char **new_argv, const int nargs,
8052 : char **out_file, char **err_file)
8053 : {
8054 0 : int i, status;
8055 0 : int fd = open (*out_file, O_RDWR | O_APPEND);
8056 0 : if (fd < 0)
8057 : return;
8058 0 : write (fd, "\n//", 3);
8059 0 : for (i = 0; i < nargs; i++)
8060 : {
8061 0 : write (fd, " ", 1);
8062 0 : write (fd, new_argv[i], strlen (new_argv[i]));
8063 : }
8064 0 : write (fd, "\n\n", 2);
8065 0 : close (fd);
8066 0 : new_argv[nargs] = "-E";
8067 0 : new_argv[nargs + 1] = NULL;
8068 :
8069 0 : status = run_attempt (new_argv, *out_file, *err_file, 0, 1);
8070 :
8071 0 : if (status == ATTEMPT_STATUS_SUCCESS)
8072 : {
8073 0 : fnotice (stderr, "Preprocessed source stored into %s file,"
8074 : " please attach this to your bugreport.\n", *out_file);
8075 : /* Make sure it is not deleted. */
8076 0 : free (*out_file);
8077 0 : *out_file = NULL;
8078 : }
8079 : }
8080 :
8081 : /* Try to reproduce ICE. If bug is reproducible, generate report .err file
8082 : containing GCC configuration, backtrace, compiler's command line options
8083 : and preprocessed source code. */
8084 :
8085 : static void
8086 0 : try_generate_repro (const char **argv)
8087 : {
8088 0 : int i, nargs, out_arg = -1, quiet = 0, attempt;
8089 0 : const char **new_argv;
8090 0 : char *temp_files[RETRY_ICE_ATTEMPTS * 2];
8091 0 : char **temp_stdout_files = &temp_files[0];
8092 0 : char **temp_stderr_files = &temp_files[RETRY_ICE_ATTEMPTS];
8093 :
8094 0 : if (gcc_input_filename == NULL || ! strcmp (gcc_input_filename, "-"))
8095 0 : return;
8096 :
8097 0 : for (nargs = 0; argv[nargs] != NULL; ++nargs)
8098 : /* Only retry compiler ICEs, not preprocessor ones. */
8099 0 : if (! strcmp (argv[nargs], "-E"))
8100 : return;
8101 0 : else if (argv[nargs][0] == '-' && argv[nargs][1] == 'o')
8102 : {
8103 0 : if (out_arg == -1)
8104 : out_arg = nargs;
8105 : else
8106 : return;
8107 : }
8108 : /* If the compiler is going to output any time information,
8109 : it might varry between invocations. */
8110 0 : else if (! strcmp (argv[nargs], "-quiet"))
8111 : quiet = 1;
8112 0 : else if (! strcmp (argv[nargs], "-ftime-report"))
8113 : return;
8114 :
8115 0 : if (out_arg == -1 || !quiet)
8116 : return;
8117 :
8118 0 : memset (temp_files, '\0', sizeof (temp_files));
8119 0 : new_argv = XALLOCAVEC (const char *, nargs + 4);
8120 0 : memcpy (new_argv, argv, (nargs + 1) * sizeof (const char *));
8121 0 : new_argv[nargs++] = "-frandom-seed=0";
8122 0 : new_argv[nargs++] = "-fdump-noaddr";
8123 0 : new_argv[nargs] = NULL;
8124 0 : if (new_argv[out_arg][2] == '\0')
8125 0 : new_argv[out_arg + 1] = "-";
8126 : else
8127 0 : new_argv[out_arg] = "-o-";
8128 :
8129 : #ifdef HOST_HAS_PERSONALITY_ADDR_NO_RANDOMIZE
8130 0 : personality (personality (0xffffffffU) | ADDR_NO_RANDOMIZE);
8131 : #endif
8132 :
8133 0 : int status;
8134 0 : for (attempt = 0; attempt < RETRY_ICE_ATTEMPTS; ++attempt)
8135 : {
8136 0 : int emit_system_info = 0;
8137 0 : int append = 0;
8138 0 : temp_stdout_files[attempt] = make_temp_file (".out");
8139 0 : temp_stderr_files[attempt] = make_temp_file (".err");
8140 :
8141 0 : if (attempt == RETRY_ICE_ATTEMPTS - 1)
8142 : {
8143 0 : append = 1;
8144 0 : emit_system_info = 1;
8145 : }
8146 :
8147 0 : status = run_attempt (new_argv, temp_stdout_files[attempt],
8148 : temp_stderr_files[attempt], emit_system_info,
8149 : append);
8150 :
8151 0 : if (status != ATTEMPT_STATUS_ICE)
8152 : {
8153 0 : fnotice (stderr, "The bug is not reproducible, so it is"
8154 : " likely a hardware or OS problem.\n");
8155 0 : goto out;
8156 : }
8157 : }
8158 :
8159 0 : if (!check_repro (temp_stdout_files, temp_stderr_files))
8160 0 : goto out;
8161 :
8162 0 : {
8163 : /* Insert commented out backtrace into report file. */
8164 0 : char **stderr_commented = &temp_stdout_files[RETRY_ICE_ATTEMPTS - 1];
8165 0 : insert_comments (temp_stderr_files[RETRY_ICE_ATTEMPTS - 1],
8166 : *stderr_commented);
8167 :
8168 : /* In final attempt we append compiler options and preprocesssed code to last
8169 : generated .out file with configuration and backtrace. */
8170 0 : char **err = &temp_stderr_files[RETRY_ICE_ATTEMPTS - 1];
8171 0 : do_report_bug (new_argv, nargs, stderr_commented, err);
8172 : }
8173 :
8174 : out:
8175 0 : for (i = 0; i < RETRY_ICE_ATTEMPTS * 2; i++)
8176 0 : if (temp_files[i])
8177 : {
8178 0 : unlink (temp_stdout_files[i]);
8179 0 : free (temp_stdout_files[i]);
8180 : }
8181 : }
8182 :
8183 : /* Search for a file named NAME trying various prefixes including the
8184 : user's -B prefix and some standard ones.
8185 : Return the absolute file name found. If nothing is found, return NAME. */
8186 :
8187 : static const char *
8188 559685 : find_file (const char *name)
8189 : {
8190 559685 : char *newname = find_a_file (&startfile_prefixes, name, true);
8191 559685 : return newname ? newname : name;
8192 : }
8193 :
8194 : /* Determine whether a directory exists. */
8195 :
8196 : static int
8197 10754658 : is_directory (const char *path1)
8198 : {
8199 10754658 : int len1;
8200 10754658 : char *path;
8201 10754658 : char *cp;
8202 10754658 : struct stat st;
8203 :
8204 : /* Ensure the string ends with "/.". The resulting path will be a
8205 : directory even if the given path is a symbolic link. */
8206 10754658 : len1 = strlen (path1);
8207 10754658 : path = (char *) alloca (3 + len1);
8208 10754658 : memcpy (path, path1, len1);
8209 10754658 : cp = path + len1;
8210 10754658 : if (!IS_DIR_SEPARATOR (cp[-1]))
8211 1535816 : *cp++ = DIR_SEPARATOR;
8212 10754658 : *cp++ = '.';
8213 10754658 : *cp = '\0';
8214 :
8215 10754658 : return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
8216 : }
8217 :
8218 : /* Set up the various global variables to indicate that we're processing
8219 : the input file named FILENAME. */
8220 :
8221 : void
8222 861083 : set_input (const char *filename)
8223 : {
8224 861083 : const char *p;
8225 :
8226 861083 : gcc_input_filename = filename;
8227 861083 : input_filename_length = strlen (gcc_input_filename);
8228 861083 : input_basename = lbasename (gcc_input_filename);
8229 :
8230 : /* Find a suffix starting with the last period,
8231 : and set basename_length to exclude that suffix. */
8232 861083 : basename_length = strlen (input_basename);
8233 861083 : suffixed_basename_length = basename_length;
8234 861083 : p = input_basename + basename_length;
8235 3768377 : while (p != input_basename && *p != '.')
8236 2907294 : --p;
8237 861083 : if (*p == '.' && p != input_basename)
8238 : {
8239 618937 : basename_length = p - input_basename;
8240 618937 : input_suffix = p + 1;
8241 : }
8242 : else
8243 242146 : input_suffix = "";
8244 :
8245 : /* If a spec for 'g', 'u', or 'U' is seen with -save-temps then
8246 : we will need to do a stat on the gcc_input_filename. The
8247 : INPUT_STAT_SET signals that the stat is needed. */
8248 861083 : input_stat_set = 0;
8249 861083 : }
8250 :
8251 : /* On fatal signals, delete all the temporary files. */
8252 :
8253 : static void
8254 0 : fatal_signal (int signum)
8255 : {
8256 0 : signal (signum, SIG_DFL);
8257 0 : delete_failure_queue ();
8258 0 : delete_temp_files ();
8259 : /* Get the same signal again, this time not handled,
8260 : so its normal effect occurs. */
8261 0 : kill (getpid (), signum);
8262 0 : }
8263 :
8264 : /* Compare the contents of the two files named CMPFILE[0] and
8265 : CMPFILE[1]. Return zero if they're identical, nonzero
8266 : otherwise. */
8267 :
8268 : static int
8269 629 : compare_files (char *cmpfile[])
8270 : {
8271 629 : int ret = 0;
8272 629 : FILE *temp[2] = { NULL, NULL };
8273 629 : int i;
8274 :
8275 : #if HAVE_MMAP_FILE
8276 629 : {
8277 629 : size_t length[2];
8278 629 : void *map[2] = { NULL, NULL };
8279 :
8280 1887 : for (i = 0; i < 2; i++)
8281 : {
8282 1258 : struct stat st;
8283 :
8284 1258 : if (stat (cmpfile[i], &st) < 0 || !S_ISREG (st.st_mode))
8285 : {
8286 0 : error ("%s: could not determine length of compare-debug file %s",
8287 : gcc_input_filename, cmpfile[i]);
8288 0 : ret = 1;
8289 0 : break;
8290 : }
8291 :
8292 1258 : length[i] = st.st_size;
8293 : }
8294 :
8295 629 : if (!ret && length[0] != length[1])
8296 : {
8297 14 : error ("%s: %<-fcompare-debug%> failure (length)", gcc_input_filename);
8298 14 : ret = 1;
8299 : }
8300 :
8301 14 : if (!ret)
8302 1779 : for (i = 0; i < 2; i++)
8303 : {
8304 1197 : int fd = open (cmpfile[i], O_RDONLY);
8305 1197 : if (fd < 0)
8306 : {
8307 0 : error ("%s: could not open compare-debug file %s",
8308 : gcc_input_filename, cmpfile[i]);
8309 0 : ret = 1;
8310 0 : break;
8311 : }
8312 :
8313 1197 : map[i] = mmap (NULL, length[i], PROT_READ, MAP_PRIVATE, fd, 0);
8314 1197 : close (fd);
8315 :
8316 1197 : if (map[i] == (void *) MAP_FAILED)
8317 : {
8318 : ret = -1;
8319 : break;
8320 : }
8321 : }
8322 :
8323 615 : if (!ret)
8324 : {
8325 582 : if (memcmp (map[0], map[1], length[0]) != 0)
8326 : {
8327 0 : error ("%s: %<-fcompare-debug%> failure", gcc_input_filename);
8328 0 : ret = 1;
8329 : }
8330 : }
8331 :
8332 1887 : for (i = 0; i < 2; i++)
8333 1258 : if (map[i])
8334 1197 : munmap ((caddr_t) map[i], length[i]);
8335 :
8336 629 : if (ret >= 0)
8337 596 : return ret;
8338 :
8339 33 : ret = 0;
8340 : }
8341 : #endif
8342 :
8343 99 : for (i = 0; i < 2; i++)
8344 : {
8345 66 : temp[i] = fopen (cmpfile[i], "r");
8346 66 : if (!temp[i])
8347 : {
8348 0 : error ("%s: could not open compare-debug file %s",
8349 : gcc_input_filename, cmpfile[i]);
8350 0 : ret = 1;
8351 0 : break;
8352 : }
8353 : }
8354 :
8355 33 : if (!ret && temp[0] && temp[1])
8356 33 : for (;;)
8357 : {
8358 33 : int c0, c1;
8359 33 : c0 = fgetc (temp[0]);
8360 33 : c1 = fgetc (temp[1]);
8361 :
8362 33 : if (c0 != c1)
8363 : {
8364 0 : error ("%s: %<-fcompare-debug%> failure",
8365 : gcc_input_filename);
8366 0 : ret = 1;
8367 0 : break;
8368 : }
8369 :
8370 33 : if (c0 == EOF)
8371 : break;
8372 : }
8373 :
8374 99 : for (i = 1; i >= 0; i--)
8375 : {
8376 66 : if (temp[i])
8377 66 : fclose (temp[i]);
8378 : }
8379 :
8380 : return ret;
8381 : }
8382 :
8383 312002 : driver::driver (bool can_finalize, bool debug) :
8384 312002 : explicit_link_files (NULL),
8385 312002 : decoded_options (NULL)
8386 : {
8387 312002 : env.init (can_finalize, debug);
8388 312002 : }
8389 :
8390 311520 : driver::~driver ()
8391 : {
8392 311520 : XDELETEVEC (explicit_link_files);
8393 311520 : XDELETEVEC (decoded_options);
8394 311520 : }
8395 :
8396 : /* driver::main is implemented as a series of driver:: method calls. */
8397 :
8398 : int
8399 312002 : driver::main (int argc, char **argv)
8400 : {
8401 312002 : bool early_exit;
8402 :
8403 312002 : set_progname (argv[0]);
8404 312002 : expand_at_files (&argc, &argv);
8405 312002 : decode_argv (argc, const_cast <const char **> (argv));
8406 312002 : global_initializations ();
8407 312002 : build_multilib_strings ();
8408 312002 : set_up_specs ();
8409 311715 : putenv_COLLECT_AS_OPTIONS (assembler_options);
8410 311715 : putenv_COLLECT_GCC (argv[0]);
8411 311715 : maybe_putenv_COLLECT_LTO_WRAPPER ();
8412 311715 : maybe_putenv_OFFLOAD_TARGETS ();
8413 311715 : handle_unrecognized_options ();
8414 :
8415 311715 : if (completion)
8416 : {
8417 5 : m_option_proposer.suggest_completion (completion);
8418 5 : return 0;
8419 : }
8420 :
8421 311710 : if (!maybe_print_and_exit ())
8422 : return 0;
8423 :
8424 294827 : early_exit = prepare_infiles ();
8425 294633 : if (early_exit)
8426 566 : return get_exit_code ();
8427 :
8428 294067 : do_spec_on_infiles ();
8429 294067 : maybe_run_linker (argv[0]);
8430 294067 : final_actions ();
8431 294067 : return get_exit_code ();
8432 : }
8433 :
8434 : /* Locate the final component of argv[0] after any leading path, and set
8435 : the program name accordingly. */
8436 :
8437 : void
8438 312002 : driver::set_progname (const char *argv0) const
8439 : {
8440 312002 : const char *p = argv0 + strlen (argv0);
8441 1719950 : while (p != argv0 && !IS_DIR_SEPARATOR (p[-1]))
8442 1407948 : --p;
8443 312002 : progname = p;
8444 :
8445 312002 : xmalloc_set_program_name (progname);
8446 312002 : }
8447 :
8448 : /* Expand any @ files within the command-line args,
8449 : setting at_file_supplied if any were expanded. */
8450 :
8451 : void
8452 312002 : driver::expand_at_files (int *argc, char ***argv) const
8453 : {
8454 312002 : char **old_argv = *argv;
8455 :
8456 312002 : expandargv (argc, argv);
8457 :
8458 : /* Determine if any expansions were made. */
8459 312002 : if (*argv != old_argv)
8460 13877 : at_file_supplied = true;
8461 312002 : }
8462 :
8463 : /* Decode the command-line arguments from argc/argv into the
8464 : decoded_options array. */
8465 :
8466 : void
8467 312002 : driver::decode_argv (int argc, const char **argv)
8468 : {
8469 312002 : init_opts_obstack ();
8470 312002 : init_options_struct (&global_options, &global_options_set);
8471 :
8472 312002 : decode_cmdline_options_to_array (argc, argv,
8473 : CL_DRIVER,
8474 : &decoded_options, &decoded_options_count);
8475 312002 : }
8476 :
8477 : /* Perform various initializations and setup. */
8478 :
8479 : void
8480 312002 : driver::global_initializations ()
8481 : {
8482 : /* Unlock the stdio streams. */
8483 312002 : unlock_std_streams ();
8484 :
8485 312002 : gcc_init_libintl ();
8486 :
8487 312002 : diagnostic_initialize (global_dc, 0);
8488 312002 : diagnostic_color_init (global_dc);
8489 312002 : diagnostic_urls_init (global_dc);
8490 312002 : global_dc->push_owned_urlifier (make_gcc_urlifier (0));
8491 :
8492 : #ifdef GCC_DRIVER_HOST_INITIALIZATION
8493 : /* Perform host dependent initialization when needed. */
8494 : GCC_DRIVER_HOST_INITIALIZATION;
8495 : #endif
8496 :
8497 312002 : if (atexit (delete_temp_files) != 0)
8498 0 : fatal_error (input_location, "atexit failed");
8499 :
8500 312002 : if (signal (SIGINT, SIG_IGN) != SIG_IGN)
8501 311851 : signal (SIGINT, fatal_signal);
8502 : #ifdef SIGHUP
8503 312002 : if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
8504 21415 : signal (SIGHUP, fatal_signal);
8505 : #endif
8506 312002 : if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
8507 312002 : signal (SIGTERM, fatal_signal);
8508 : #ifdef SIGPIPE
8509 312002 : if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
8510 312002 : signal (SIGPIPE, fatal_signal);
8511 : #endif
8512 : #ifdef SIGCHLD
8513 : /* We *MUST* set SIGCHLD to SIG_DFL so that the wait4() call will
8514 : receive the signal. A different setting is inheritable */
8515 312002 : signal (SIGCHLD, SIG_DFL);
8516 : #endif
8517 :
8518 : /* Parsing and gimplification sometimes need quite large stack.
8519 : Increase stack size limits if possible. */
8520 : #ifdef __SANITIZE_ADDRESS__
8521 : stack_limit_increase (128 * 1024 * 1024);
8522 : #else
8523 312002 : stack_limit_increase (64 * 1024 * 1024);
8524 : #endif
8525 :
8526 : /* Allocate the argument vector. */
8527 312002 : alloc_args ();
8528 :
8529 312002 : obstack_init (&obstack);
8530 312002 : }
8531 :
8532 : /* Build multilib_select, et. al from the separate lines that make up each
8533 : multilib selection. */
8534 :
8535 : void
8536 312002 : driver::build_multilib_strings () const
8537 : {
8538 312002 : {
8539 312002 : const char *p;
8540 312002 : const char *const *q = multilib_raw;
8541 312002 : int need_space;
8542 :
8543 312002 : obstack_init (&multilib_obstack);
8544 312002 : while ((p = *q++) != (char *) 0)
8545 1248008 : obstack_grow (&multilib_obstack, p, strlen (p));
8546 :
8547 312002 : obstack_1grow (&multilib_obstack, 0);
8548 312002 : multilib_select = XOBFINISH (&multilib_obstack, const char *);
8549 :
8550 312002 : q = multilib_matches_raw;
8551 312002 : while ((p = *q++) != (char *) 0)
8552 936006 : obstack_grow (&multilib_obstack, p, strlen (p));
8553 :
8554 312002 : obstack_1grow (&multilib_obstack, 0);
8555 312002 : multilib_matches = XOBFINISH (&multilib_obstack, const char *);
8556 :
8557 312002 : q = multilib_exclusions_raw;
8558 312002 : while ((p = *q++) != (char *) 0)
8559 312002 : obstack_grow (&multilib_obstack, p, strlen (p));
8560 :
8561 312002 : obstack_1grow (&multilib_obstack, 0);
8562 312002 : multilib_exclusions = XOBFINISH (&multilib_obstack, const char *);
8563 :
8564 312002 : q = multilib_reuse_raw;
8565 312002 : while ((p = *q++) != (char *) 0)
8566 312002 : obstack_grow (&multilib_obstack, p, strlen (p));
8567 :
8568 312002 : obstack_1grow (&multilib_obstack, 0);
8569 312002 : multilib_reuse = XOBFINISH (&multilib_obstack, const char *);
8570 :
8571 312002 : need_space = false;
8572 624004 : for (size_t i = 0; i < ARRAY_SIZE (multilib_defaults_raw); i++)
8573 : {
8574 312002 : if (need_space)
8575 0 : obstack_1grow (&multilib_obstack, ' ');
8576 312002 : obstack_grow (&multilib_obstack,
8577 : multilib_defaults_raw[i],
8578 : strlen (multilib_defaults_raw[i]));
8579 312002 : need_space = true;
8580 : }
8581 :
8582 312002 : obstack_1grow (&multilib_obstack, 0);
8583 312002 : multilib_defaults = XOBFINISH (&multilib_obstack, const char *);
8584 : }
8585 312002 : }
8586 :
8587 : /* Set up the spec-handling machinery. */
8588 :
8589 : void
8590 312002 : driver::set_up_specs () const
8591 : {
8592 312002 : const char *spec_machine_suffix;
8593 312002 : char *specs_file;
8594 312002 : size_t i;
8595 :
8596 : #ifdef INIT_ENVIRONMENT
8597 : /* Set up any other necessary machine specific environment variables. */
8598 : xputenv (INIT_ENVIRONMENT);
8599 : #endif
8600 :
8601 : /* Make a table of what switches there are (switches, n_switches).
8602 : Make a table of specified input files (infiles, n_infiles).
8603 : Decode switches that are handled locally. */
8604 :
8605 312002 : process_command (decoded_options_count, decoded_options);
8606 :
8607 : /* Initialize the vector of specs to just the default.
8608 : This means one element containing 0s, as a terminator. */
8609 :
8610 311716 : compilers = XNEWVAR (struct compiler, sizeof default_compilers);
8611 311716 : memcpy (compilers, default_compilers, sizeof default_compilers);
8612 311716 : n_compilers = n_default_compilers;
8613 :
8614 : /* Read specs from a file if there is one. */
8615 :
8616 311716 : machine_suffix = concat (spec_host_machine, dir_separator_str, spec_version,
8617 : accel_dir_suffix, dir_separator_str, NULL);
8618 311716 : just_machine_suffix = concat (spec_machine, dir_separator_str, NULL);
8619 311716 : just_machine_prefix = concat (spec_machine, "-", NULL);
8620 :
8621 311716 : specs_file = find_a_file (&startfile_prefixes, "specs", true);
8622 : /* Read the specs file unless it is a default one. */
8623 311716 : if (specs_file != 0 && strcmp (specs_file, "specs"))
8624 310520 : read_specs (specs_file, true, false);
8625 : else
8626 1196 : init_spec ();
8627 :
8628 : #ifdef ACCEL_COMPILER
8629 : spec_machine_suffix = machine_suffix;
8630 : #else
8631 311716 : spec_machine_suffix = just_machine_suffix;
8632 : #endif
8633 :
8634 311716 : const char *exec_prefix
8635 311716 : = gcc_exec_prefix ? gcc_exec_prefix : standard_exec_prefix;
8636 : /* We need to check standard_exec_prefix/spec_machine_suffix/specs
8637 : for any override of as, ld and libraries. */
8638 311716 : specs_file = (char *) alloca (
8639 : strlen (exec_prefix) + strlen (spec_machine_suffix) + sizeof ("specs"));
8640 311716 : strcpy (specs_file, exec_prefix);
8641 311716 : strcat (specs_file, spec_machine_suffix);
8642 311716 : strcat (specs_file, "specs");
8643 311716 : if (access (specs_file, R_OK) == 0)
8644 0 : read_specs (specs_file, true, false);
8645 :
8646 : /* Process any configure-time defaults specified for the command line
8647 : options, via OPTION_DEFAULT_SPECS. */
8648 3428876 : for (i = 0; i < ARRAY_SIZE (option_default_specs); i++)
8649 3117160 : do_option_spec (option_default_specs[i].name,
8650 3117160 : option_default_specs[i].spec);
8651 :
8652 : /* Process DRIVER_SELF_SPECS, adding any new options to the end
8653 : of the command line. */
8654 :
8655 2182012 : for (i = 0; i < ARRAY_SIZE (driver_self_specs); i++)
8656 1870296 : do_self_spec (driver_self_specs[i]);
8657 :
8658 : /* If not cross-compiling, look for executables in the standard
8659 : places. */
8660 311716 : if (*cross_compile == '0')
8661 : {
8662 311716 : if (*md_exec_prefix)
8663 : {
8664 0 : add_prefix (&exec_prefixes, md_exec_prefix, "GCC",
8665 : PREFIX_PRIORITY_LAST, 0, 0);
8666 : }
8667 : }
8668 :
8669 : /* Process sysroot_suffix_spec. */
8670 311716 : if (*sysroot_suffix_spec != 0
8671 0 : && !no_sysroot_suffix
8672 311716 : && do_spec_2 (sysroot_suffix_spec, NULL) == 0)
8673 : {
8674 0 : if (argbuf.length () > 1)
8675 0 : error ("spec failure: more than one argument to "
8676 : "%<SYSROOT_SUFFIX_SPEC%>");
8677 0 : else if (argbuf.length () == 1)
8678 0 : target_sysroot_suffix = xstrdup (argbuf.last ());
8679 : }
8680 :
8681 : #ifdef HAVE_LD_SYSROOT
8682 : /* Pass the --sysroot option to the linker, if it supports that. If
8683 : there is a sysroot_suffix_spec, it has already been processed by
8684 : this point, so target_system_root really is the system root we
8685 : should be using. */
8686 311716 : if (target_system_root)
8687 : {
8688 0 : obstack_grow (&obstack, "%(sysroot_spec) ", strlen ("%(sysroot_spec) "));
8689 0 : obstack_grow0 (&obstack, link_spec, strlen (link_spec));
8690 0 : set_spec ("link", XOBFINISH (&obstack, const char *), false);
8691 : }
8692 : #endif
8693 :
8694 : /* Process sysroot_hdrs_suffix_spec. */
8695 311716 : if (*sysroot_hdrs_suffix_spec != 0
8696 0 : && !no_sysroot_suffix
8697 311716 : && do_spec_2 (sysroot_hdrs_suffix_spec, NULL) == 0)
8698 : {
8699 0 : if (argbuf.length () > 1)
8700 0 : error ("spec failure: more than one argument "
8701 : "to %<SYSROOT_HEADERS_SUFFIX_SPEC%>");
8702 0 : else if (argbuf.length () == 1)
8703 0 : target_sysroot_hdrs_suffix = xstrdup (argbuf.last ());
8704 : }
8705 :
8706 : /* Look for startfiles in the standard places. */
8707 311716 : if (*startfile_prefix_spec != 0
8708 0 : && do_spec_2 (startfile_prefix_spec, NULL) == 0
8709 311716 : && do_spec_1 (" ", 0, NULL) == 0)
8710 : {
8711 0 : for (const char *arg : argbuf)
8712 0 : add_sysrooted_prefix (&startfile_prefixes, arg, "BINUTILS",
8713 : PREFIX_PRIORITY_LAST, 0, 1);
8714 : }
8715 : /* We should eventually get rid of all these and stick to
8716 : startfile_prefix_spec exclusively. */
8717 311716 : else if (*cross_compile == '0' || target_system_root)
8718 : {
8719 311716 : if (*md_startfile_prefix)
8720 0 : add_sysrooted_prefix (&startfile_prefixes, md_startfile_prefix,
8721 : "GCC", PREFIX_PRIORITY_LAST, 0, 1);
8722 :
8723 311716 : if (*md_startfile_prefix_1)
8724 0 : add_sysrooted_prefix (&startfile_prefixes, md_startfile_prefix_1,
8725 : "GCC", PREFIX_PRIORITY_LAST, 0, 1);
8726 :
8727 : /* If standard_startfile_prefix is relative, base it on
8728 : standard_exec_prefix. This lets us move the installed tree
8729 : as a unit. If GCC_EXEC_PREFIX is defined, base
8730 : standard_startfile_prefix on that as well.
8731 :
8732 : If the prefix is relative, only search it for native compilers;
8733 : otherwise we will search a directory containing host libraries. */
8734 311716 : if (IS_ABSOLUTE_PATH (standard_startfile_prefix))
8735 : add_sysrooted_prefix (&startfile_prefixes,
8736 : standard_startfile_prefix, "BINUTILS",
8737 : PREFIX_PRIORITY_LAST, 0, 1);
8738 311716 : else if (*cross_compile == '0')
8739 : {
8740 311716 : add_prefix (&startfile_prefixes,
8741 623432 : concat (gcc_exec_prefix
8742 : ? gcc_exec_prefix : standard_exec_prefix,
8743 : machine_suffix,
8744 : standard_startfile_prefix, NULL),
8745 : NULL, PREFIX_PRIORITY_LAST, 0, 1);
8746 : }
8747 :
8748 : /* Sysrooted prefixes are relocated because target_system_root is
8749 : also relocated by gcc_exec_prefix. */
8750 311716 : if (*standard_startfile_prefix_1)
8751 311716 : add_sysrooted_prefix (&startfile_prefixes,
8752 : standard_startfile_prefix_1, "BINUTILS",
8753 : PREFIX_PRIORITY_LAST, 0, 1);
8754 311716 : if (*standard_startfile_prefix_2)
8755 311716 : add_sysrooted_prefix (&startfile_prefixes,
8756 : standard_startfile_prefix_2, "BINUTILS",
8757 : PREFIX_PRIORITY_LAST, 0, 1);
8758 : }
8759 :
8760 : /* Process any user specified specs in the order given on the command
8761 : line. */
8762 311718 : for (struct user_specs *uptr = user_specs_head; uptr; uptr = uptr->next)
8763 : {
8764 3 : char *filename = find_a_file (&startfile_prefixes, uptr->filename,
8765 : true);
8766 3 : read_specs (filename ? filename : uptr->filename, false, true);
8767 : }
8768 :
8769 : /* Process any user self specs. */
8770 311715 : {
8771 311715 : struct spec_list *sl;
8772 14650605 : for (sl = specs; sl; sl = sl->next)
8773 14338890 : if (sl->name_len == sizeof "self_spec" - 1
8774 2182005 : && !strcmp (sl->name, "self_spec"))
8775 311715 : do_self_spec (*sl->ptr_spec);
8776 : }
8777 :
8778 311715 : if (compare_debug)
8779 : {
8780 635 : enum save_temps save;
8781 :
8782 635 : if (!compare_debug_second)
8783 : {
8784 635 : n_switches_debug_check[1] = n_switches;
8785 635 : n_switches_alloc_debug_check[1] = n_switches_alloc;
8786 635 : switches_debug_check[1] = XDUPVEC (struct switchstr, switches,
8787 : n_switches_alloc);
8788 :
8789 635 : do_self_spec ("%:compare-debug-self-opt()");
8790 635 : n_switches_debug_check[0] = n_switches;
8791 635 : n_switches_alloc_debug_check[0] = n_switches_alloc;
8792 635 : switches_debug_check[0] = switches;
8793 :
8794 635 : n_switches = n_switches_debug_check[1];
8795 635 : n_switches_alloc = n_switches_alloc_debug_check[1];
8796 635 : switches = switches_debug_check[1];
8797 : }
8798 :
8799 : /* Avoid crash when computing %j in this early. */
8800 635 : save = save_temps_flag;
8801 635 : save_temps_flag = SAVE_TEMPS_NONE;
8802 :
8803 635 : compare_debug = -compare_debug;
8804 635 : do_self_spec ("%:compare-debug-self-opt()");
8805 :
8806 635 : save_temps_flag = save;
8807 :
8808 635 : if (!compare_debug_second)
8809 : {
8810 635 : n_switches_debug_check[1] = n_switches;
8811 635 : n_switches_alloc_debug_check[1] = n_switches_alloc;
8812 635 : switches_debug_check[1] = switches;
8813 635 : compare_debug = -compare_debug;
8814 635 : n_switches = n_switches_debug_check[0];
8815 635 : n_switches_alloc = n_switches_debug_check[0];
8816 635 : switches = switches_debug_check[0];
8817 : }
8818 : }
8819 :
8820 :
8821 : /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
8822 311715 : if (gcc_exec_prefix)
8823 311715 : gcc_exec_prefix = concat (gcc_exec_prefix, spec_host_machine,
8824 : dir_separator_str, spec_version,
8825 : accel_dir_suffix, dir_separator_str, NULL);
8826 :
8827 : /* Now we have the specs.
8828 : Set the `valid' bits for switches that match anything in any spec. */
8829 :
8830 311715 : validate_all_switches ();
8831 :
8832 : /* Now that we have the switches and the specs, set
8833 : the subdirectory based on the options. */
8834 311715 : set_multilib_dir ();
8835 311715 : }
8836 :
8837 : /* Set up to remember the pathname of gcc and any options
8838 : needed for collect. We use argv[0] instead of progname because
8839 : we need the complete pathname. */
8840 :
8841 : void
8842 311715 : driver::putenv_COLLECT_GCC (const char *argv0) const
8843 : {
8844 311715 : obstack_init (&collect_obstack);
8845 311715 : obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=") - 1);
8846 311715 : obstack_grow (&collect_obstack, argv0, strlen (argv0) + 1);
8847 311715 : xputenv (XOBFINISH (&collect_obstack, char *));
8848 311715 : }
8849 :
8850 : /* Set up to remember the pathname of the lto wrapper. */
8851 :
8852 : void
8853 311715 : driver::maybe_putenv_COLLECT_LTO_WRAPPER () const
8854 : {
8855 311715 : char *lto_wrapper_file;
8856 :
8857 311715 : if (have_c)
8858 : lto_wrapper_file = NULL;
8859 : else
8860 115435 : lto_wrapper_file = find_a_program ("lto-wrapper");
8861 115435 : if (lto_wrapper_file)
8862 : {
8863 226198 : lto_wrapper_file = convert_white_space (lto_wrapper_file);
8864 113099 : set_static_spec_owned (<o_wrapper_spec, lto_wrapper_file);
8865 113099 : obstack_init (&collect_obstack);
8866 113099 : obstack_grow (&collect_obstack, "COLLECT_LTO_WRAPPER=",
8867 : sizeof ("COLLECT_LTO_WRAPPER=") - 1);
8868 113099 : obstack_grow (&collect_obstack, lto_wrapper_spec,
8869 : strlen (lto_wrapper_spec) + 1);
8870 113099 : xputenv (XOBFINISH (&collect_obstack, char *));
8871 : }
8872 :
8873 311715 : }
8874 :
8875 : /* Set up to remember the names of offload targets. */
8876 :
8877 : void
8878 311715 : driver::maybe_putenv_OFFLOAD_TARGETS () const
8879 : {
8880 311715 : if (offload_targets && offload_targets[0] != '\0')
8881 : {
8882 0 : obstack_grow (&collect_obstack, "OFFLOAD_TARGET_NAMES=",
8883 : sizeof ("OFFLOAD_TARGET_NAMES=") - 1);
8884 0 : obstack_grow (&collect_obstack, offload_targets,
8885 : strlen (offload_targets) + 1);
8886 0 : xputenv (XOBFINISH (&collect_obstack, char *));
8887 : #if OFFLOAD_DEFAULTED
8888 : if (offload_targets_default)
8889 : xputenv ("OFFLOAD_TARGET_DEFAULT=1");
8890 : #endif
8891 : }
8892 :
8893 311715 : free (offload_targets);
8894 311715 : offload_targets = NULL;
8895 311715 : }
8896 :
8897 : /* Reject switches that no pass was interested in. */
8898 :
8899 : void
8900 311715 : driver::handle_unrecognized_options ()
8901 : {
8902 7291964 : for (size_t i = 0; (int) i < n_switches; i++)
8903 6980249 : if (! switches[i].validated)
8904 : {
8905 700 : const char *hint = m_option_proposer.suggest_option (switches[i].part1);
8906 700 : if (hint)
8907 219 : error ("unrecognized command-line option %<-%s%>;"
8908 : " did you mean %<-%s%>?",
8909 219 : switches[i].part1, hint);
8910 : else
8911 481 : error ("unrecognized command-line option %<-%s%>",
8912 481 : switches[i].part1);
8913 : }
8914 311715 : }
8915 :
8916 : /* Handle the various -print-* options, returning 0 if the driver
8917 : should exit, or nonzero if the driver should continue. */
8918 :
8919 : int
8920 311710 : driver::maybe_print_and_exit () const
8921 : {
8922 311710 : if (print_search_dirs)
8923 : {
8924 56 : printf (_("install: %s%s\n"),
8925 : gcc_exec_prefix ? gcc_exec_prefix : standard_exec_prefix,
8926 28 : gcc_exec_prefix ? "" : machine_suffix);
8927 28 : printf (_("programs: %s\n"),
8928 : build_search_list (&exec_prefixes, "", false, false));
8929 28 : printf (_("libraries: %s\n"),
8930 : build_search_list (&startfile_prefixes, "", false, true));
8931 28 : return (0);
8932 : }
8933 :
8934 311682 : if (print_autofdo_gcov_version)
8935 : {
8936 0 : printf ("%d\n", AUTO_PROFILE_VERSION);
8937 0 : return (0);
8938 : }
8939 :
8940 311682 : if (print_file_name)
8941 : {
8942 5032 : printf ("%s\n", find_file (print_file_name));
8943 5032 : return (0);
8944 : }
8945 :
8946 306650 : if (print_prog_name)
8947 : {
8948 217 : if (use_ld != NULL && ! strcmp (print_prog_name, "ld"))
8949 : {
8950 : /* Append USE_LD to the default linker. */
8951 : #ifdef DEFAULT_LINKER
8952 : char *ld;
8953 : # ifdef HAVE_HOST_EXECUTABLE_SUFFIX
8954 : int len = (sizeof (DEFAULT_LINKER)
8955 : - sizeof (HOST_EXECUTABLE_SUFFIX));
8956 : ld = NULL;
8957 : if (len > 0)
8958 : {
8959 : char *default_linker = xstrdup (DEFAULT_LINKER);
8960 : /* Strip HOST_EXECUTABLE_SUFFIX if DEFAULT_LINKER contains
8961 : HOST_EXECUTABLE_SUFFIX. */
8962 : if (! strcmp (&default_linker[len], HOST_EXECUTABLE_SUFFIX))
8963 : {
8964 : default_linker[len] = '\0';
8965 : ld = concat (default_linker, use_ld,
8966 : HOST_EXECUTABLE_SUFFIX, NULL);
8967 : }
8968 : }
8969 : if (ld == NULL)
8970 : # endif
8971 : ld = concat (DEFAULT_LINKER, use_ld, NULL);
8972 : if (access (ld, X_OK) == 0)
8973 : {
8974 : printf ("%s\n", ld);
8975 : return (0);
8976 : }
8977 : #endif
8978 0 : print_prog_name = concat (print_prog_name, use_ld, NULL);
8979 : }
8980 217 : char *newname = find_a_program (print_prog_name);
8981 217 : printf ("%s\n", (newname ? newname : print_prog_name));
8982 217 : return (0);
8983 : }
8984 :
8985 306433 : if (print_multi_lib)
8986 : {
8987 5577 : print_multilib_info ();
8988 5577 : return (0);
8989 : }
8990 :
8991 300856 : if (print_multi_directory)
8992 : {
8993 4996 : if (multilib_dir == NULL)
8994 4971 : printf (".\n");
8995 : else
8996 25 : printf ("%s\n", multilib_dir);
8997 4996 : return (0);
8998 : }
8999 :
9000 295860 : if (print_multiarch)
9001 : {
9002 0 : if (multiarch_dir == NULL)
9003 0 : printf ("\n");
9004 : else
9005 0 : printf ("%s\n", multiarch_dir);
9006 0 : return (0);
9007 : }
9008 :
9009 295860 : if (print_sysroot)
9010 : {
9011 0 : if (target_system_root)
9012 : {
9013 0 : if (target_sysroot_suffix)
9014 0 : printf ("%s%s\n", target_system_root, target_sysroot_suffix);
9015 : else
9016 0 : printf ("%s\n", target_system_root);
9017 : }
9018 0 : return (0);
9019 : }
9020 :
9021 295860 : if (print_multi_os_directory)
9022 : {
9023 149 : if (multilib_os_dir == NULL)
9024 0 : printf (".\n");
9025 : else
9026 149 : printf ("%s\n", multilib_os_dir);
9027 149 : return (0);
9028 : }
9029 :
9030 295711 : if (print_sysroot_headers_suffix)
9031 : {
9032 1 : if (*sysroot_hdrs_suffix_spec)
9033 : {
9034 0 : printf("%s\n", (target_sysroot_hdrs_suffix
9035 : ? target_sysroot_hdrs_suffix
9036 : : ""));
9037 0 : return (0);
9038 : }
9039 : else
9040 : /* The error status indicates that only one set of fixed
9041 : headers should be built. */
9042 1 : fatal_error (input_location,
9043 : "not configured with sysroot headers suffix");
9044 : }
9045 :
9046 295710 : if (print_help_list)
9047 : {
9048 4 : display_help ();
9049 :
9050 4 : if (! verbose_flag)
9051 : {
9052 1 : printf (_("\nFor bug reporting instructions, please see:\n"));
9053 1 : printf ("%s.\n", bug_report_url);
9054 :
9055 1 : return (0);
9056 : }
9057 :
9058 : /* We do not exit here. Instead we have created a fake input file
9059 : called 'help-dummy' which needs to be compiled, and we pass this
9060 : on the various sub-processes, along with the --help switch.
9061 : Ensure their output appears after ours. */
9062 3 : fputc ('\n', stdout);
9063 3 : fflush (stdout);
9064 : }
9065 :
9066 295709 : if (print_version)
9067 : {
9068 78 : printf (_("%s %s%s\n"), progname, pkgversion_string,
9069 : version_string);
9070 78 : printf ("Copyright %s 2026 Free Software Foundation, Inc.\n",
9071 : _("(C)"));
9072 78 : fputs (_("This is free software; see the source for copying conditions. There is NO\n\
9073 : warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
9074 : stdout);
9075 78 : if (! verbose_flag)
9076 : return 0;
9077 :
9078 : /* We do not exit here. We use the same mechanism of --help to print
9079 : the version of the sub-processes. */
9080 0 : fputc ('\n', stdout);
9081 0 : fflush (stdout);
9082 : }
9083 :
9084 295631 : if (verbose_flag)
9085 : {
9086 1658 : print_configuration (stderr);
9087 1658 : if (n_infiles == 0)
9088 : return (0);
9089 : }
9090 :
9091 : return 1;
9092 : }
9093 :
9094 : /* Figure out what to do with each input file.
9095 : Return true if we need to exit early from "main", false otherwise. */
9096 :
9097 : bool
9098 294827 : driver::prepare_infiles ()
9099 : {
9100 294827 : size_t i;
9101 294827 : int lang_n_infiles = 0;
9102 :
9103 294827 : if (n_infiles == added_libraries)
9104 194 : fatal_error (input_location, "no input files");
9105 :
9106 294633 : if (seen_error ())
9107 : /* Early exit needed from main. */
9108 : return true;
9109 :
9110 : /* Make a place to record the compiler output file names
9111 : that correspond to the input files. */
9112 :
9113 294067 : i = n_infiles;
9114 294067 : i += lang_specific_extra_outfiles;
9115 294067 : outfiles = XCNEWVEC (const char *, i);
9116 :
9117 : /* Record which files were specified explicitly as link input. */
9118 :
9119 294067 : explicit_link_files = XCNEWVEC (char, n_infiles);
9120 :
9121 294067 : combine_inputs = have_o || flag_wpa;
9122 :
9123 862995 : for (i = 0; (int) i < n_infiles; i++)
9124 : {
9125 568928 : const char *name = infiles[i].name;
9126 568928 : struct compiler *compiler = lookup_compiler (name,
9127 : strlen (name),
9128 : infiles[i].language);
9129 :
9130 568928 : if (compiler && !(compiler->combinable))
9131 262634 : combine_inputs = false;
9132 :
9133 568928 : if (lang_n_infiles > 0 && compiler != input_file_compiler
9134 253021 : && infiles[i].language && infiles[i].language[0] != '*')
9135 36 : infiles[i].incompiler = compiler;
9136 568892 : else if (infiles[i].artificial)
9137 : /* Leave lang_n_infiles alone so files added by the driver don't
9138 : interfere with -c -o. */
9139 3 : infiles[i].incompiler = compiler;
9140 568889 : else if (compiler)
9141 : {
9142 305068 : lang_n_infiles++;
9143 305068 : input_file_compiler = compiler;
9144 305068 : infiles[i].incompiler = compiler;
9145 : }
9146 : else
9147 : {
9148 : /* Since there is no compiler for this input file, assume it is a
9149 : linker file. */
9150 263821 : explicit_link_files[i] = 1;
9151 263821 : infiles[i].incompiler = NULL;
9152 : }
9153 568928 : infiles[i].compiled = false;
9154 568928 : infiles[i].preprocessed = false;
9155 : }
9156 :
9157 294067 : if (!combine_inputs && have_c && have_o && lang_n_infiles > 1)
9158 0 : fatal_error (input_location,
9159 : "cannot specify %<-o%> with %<-c%>, %<-S%> or %<-E%> "
9160 : "with multiple files");
9161 :
9162 : /* No early exit needed from main; we can continue. */
9163 : return false;
9164 : }
9165 :
9166 : /* Run the spec machinery on each input file. */
9167 :
9168 : void
9169 294067 : driver::do_spec_on_infiles () const
9170 : {
9171 294067 : size_t i;
9172 :
9173 862995 : for (i = 0; (int) i < n_infiles; i++)
9174 : {
9175 568928 : int this_file_error = 0;
9176 :
9177 : /* Tell do_spec what to substitute for %i. */
9178 :
9179 568928 : input_file_number = i;
9180 568928 : set_input (infiles[i].name);
9181 :
9182 568928 : if (infiles[i].compiled)
9183 9116 : continue;
9184 :
9185 : /* Use the same thing in %o, unless cp->spec says otherwise. */
9186 :
9187 559812 : outfiles[i] = gcc_input_filename;
9188 :
9189 : /* Figure out which compiler from the file's suffix. */
9190 :
9191 559812 : input_file_compiler
9192 559812 : = lookup_compiler (infiles[i].name, input_filename_length,
9193 : infiles[i].language);
9194 :
9195 559812 : if (input_file_compiler)
9196 : {
9197 : /* Ok, we found an applicable compiler. Run its spec. */
9198 :
9199 295991 : if (input_file_compiler->spec[0] == '#')
9200 : {
9201 0 : error ("%s: %s compiler not installed on this system",
9202 : gcc_input_filename, &input_file_compiler->spec[1]);
9203 0 : this_file_error = 1;
9204 : }
9205 : else
9206 : {
9207 295991 : int value;
9208 :
9209 295991 : if (compare_debug)
9210 : {
9211 633 : free (debug_check_temp_file[0]);
9212 633 : debug_check_temp_file[0] = NULL;
9213 :
9214 633 : free (debug_check_temp_file[1]);
9215 633 : debug_check_temp_file[1] = NULL;
9216 : }
9217 :
9218 295991 : value = do_spec (input_file_compiler->spec);
9219 295991 : infiles[i].compiled = true;
9220 295991 : if (value < 0)
9221 : this_file_error = 1;
9222 265603 : else if (compare_debug && debug_check_temp_file[0])
9223 : {
9224 629 : if (verbose_flag)
9225 0 : inform (UNKNOWN_LOCATION,
9226 : "recompiling with %<-fcompare-debug%>");
9227 :
9228 629 : compare_debug = -compare_debug;
9229 629 : n_switches = n_switches_debug_check[1];
9230 629 : n_switches_alloc = n_switches_alloc_debug_check[1];
9231 629 : switches = switches_debug_check[1];
9232 :
9233 629 : value = do_spec (input_file_compiler->spec);
9234 :
9235 629 : compare_debug = -compare_debug;
9236 629 : n_switches = n_switches_debug_check[0];
9237 629 : n_switches_alloc = n_switches_alloc_debug_check[0];
9238 629 : switches = switches_debug_check[0];
9239 :
9240 629 : if (value < 0)
9241 : {
9242 2 : error ("during %<-fcompare-debug%> recompilation");
9243 2 : this_file_error = 1;
9244 : }
9245 :
9246 629 : gcc_assert (debug_check_temp_file[1]
9247 : && filename_cmp (debug_check_temp_file[0],
9248 : debug_check_temp_file[1]));
9249 :
9250 629 : if (verbose_flag)
9251 0 : inform (UNKNOWN_LOCATION, "comparing final insns dumps");
9252 :
9253 629 : if (compare_files (debug_check_temp_file))
9254 30402 : this_file_error = 1;
9255 : }
9256 :
9257 295991 : if (compare_debug)
9258 : {
9259 633 : free (debug_check_temp_file[0]);
9260 633 : debug_check_temp_file[0] = NULL;
9261 :
9262 633 : free (debug_check_temp_file[1]);
9263 633 : debug_check_temp_file[1] = NULL;
9264 : }
9265 : }
9266 : }
9267 :
9268 : /* If this file's name does not contain a recognized suffix,
9269 : record it as explicit linker input. */
9270 :
9271 : else
9272 263821 : explicit_link_files[i] = 1;
9273 :
9274 : /* Clear the delete-on-failure queue, deleting the files in it
9275 : if this compilation failed. */
9276 :
9277 559812 : if (this_file_error)
9278 : {
9279 30402 : delete_failure_queue ();
9280 30402 : errorcount++;
9281 : }
9282 : /* If this compilation succeeded, don't delete those files later. */
9283 559812 : clear_failure_queue ();
9284 : }
9285 :
9286 : /* Reset the input file name to the first compile/object file name, for use
9287 : with %b in LINK_SPEC. We use the first input file that we can find
9288 : a compiler to compile it instead of using infiles.language since for
9289 : languages other than C we use aliases that we then lookup later. */
9290 294067 : if (n_infiles > 0)
9291 : {
9292 : int i;
9293 :
9294 306302 : for (i = 0; i < n_infiles ; i++)
9295 304390 : if (infiles[i].incompiler
9296 12235 : || (infiles[i].language && infiles[i].language[0] != '*'))
9297 : {
9298 292155 : set_input (infiles[i].name);
9299 292155 : break;
9300 : }
9301 : }
9302 :
9303 294067 : if (!seen_error ())
9304 : {
9305 : /* Make sure INPUT_FILE_NUMBER points to first available open
9306 : slot. */
9307 263665 : input_file_number = n_infiles;
9308 263665 : if (lang_specific_pre_link ())
9309 0 : errorcount++;
9310 : }
9311 294067 : }
9312 :
9313 : /* If we have to run the linker, do it now. */
9314 :
9315 : void
9316 294067 : driver::maybe_run_linker (const char *argv0) const
9317 : {
9318 294067 : size_t i;
9319 294067 : int linker_was_run = 0;
9320 294067 : int num_linker_inputs;
9321 :
9322 : /* Determine if there are any linker input files. */
9323 294067 : num_linker_inputs = 0;
9324 862995 : for (i = 0; (int) i < n_infiles; i++)
9325 568928 : if (explicit_link_files[i] || outfiles[i] != NULL)
9326 559345 : num_linker_inputs++;
9327 :
9328 : /* Arrange for temporary file names created during linking to take
9329 : on names related with the linker output rather than with the
9330 : inputs when appropriate. */
9331 294067 : if (outbase && *outbase)
9332 : {
9333 272293 : if (dumpdir)
9334 : {
9335 90683 : char *tofree = dumpdir;
9336 90683 : gcc_checking_assert (strlen (dumpdir) == dumpdir_length);
9337 90683 : dumpdir = concat (dumpdir, outbase, ".", NULL);
9338 90683 : free (tofree);
9339 : }
9340 : else
9341 181610 : dumpdir = concat (outbase, ".", NULL);
9342 272293 : dumpdir_length += strlen (outbase) + 1;
9343 272293 : dumpdir_trailing_dash_added = true;
9344 272293 : }
9345 21774 : else if (dumpdir_trailing_dash_added)
9346 : {
9347 17339 : gcc_assert (dumpdir[dumpdir_length - 1] == '-');
9348 17339 : dumpdir[dumpdir_length - 1] = '.';
9349 : }
9350 :
9351 294067 : if (dumpdir_trailing_dash_added)
9352 : {
9353 289632 : gcc_assert (dumpdir_length > 0);
9354 289632 : gcc_assert (dumpdir[dumpdir_length - 1] == '.');
9355 289632 : dumpdir_length--;
9356 : }
9357 :
9358 294067 : free (outbase);
9359 294067 : input_basename = outbase = NULL;
9360 294067 : outbase_length = suffixed_basename_length = basename_length = 0;
9361 :
9362 : /* Run ld to link all the compiler output files. */
9363 :
9364 294067 : if (num_linker_inputs > 0 && !seen_error () && print_subprocess_help < 2)
9365 : {
9366 263090 : int tmp = execution_count;
9367 :
9368 263090 : detect_jobserver ();
9369 :
9370 263090 : if (! have_c)
9371 : {
9372 : #if HAVE_LTO_PLUGIN > 0
9373 : #if HAVE_LTO_PLUGIN == 2
9374 98149 : const char *fno_use_linker_plugin = "fno-use-linker-plugin";
9375 : #else
9376 : const char *fuse_linker_plugin = "fuse-linker-plugin";
9377 : #endif
9378 : #endif
9379 :
9380 : /* We'll use ld if we can't find collect2. */
9381 98149 : if (! strcmp (linker_name_spec, "collect2"))
9382 : {
9383 98149 : char *s = find_a_program ("collect2");
9384 98149 : if (s == NULL)
9385 1139 : set_static_spec_shared (&linker_name_spec, "ld");
9386 : }
9387 :
9388 : #if HAVE_LTO_PLUGIN > 0
9389 : #if HAVE_LTO_PLUGIN == 2
9390 98149 : if (!switch_matches (fno_use_linker_plugin,
9391 : fno_use_linker_plugin
9392 : + strlen (fno_use_linker_plugin), 0))
9393 : #else
9394 : if (switch_matches (fuse_linker_plugin,
9395 : fuse_linker_plugin
9396 : + strlen (fuse_linker_plugin), 0))
9397 : #endif
9398 : {
9399 92602 : char *temp_spec = find_a_file (&exec_prefixes,
9400 : LTOPLUGINSONAME,
9401 : false);
9402 92602 : if (!temp_spec)
9403 0 : fatal_error (input_location,
9404 : "%<-fuse-linker-plugin%>, but %s not found",
9405 : LTOPLUGINSONAME);
9406 92602 : linker_plugin_file_spec = convert_white_space (temp_spec);
9407 : }
9408 : #endif
9409 98149 : set_static_spec_shared (<o_gcc_spec, argv0);
9410 : }
9411 :
9412 : /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
9413 : for collect. */
9414 263090 : putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH", false);
9415 263090 : putenv_from_prefixes (&startfile_prefixes, LIBRARY_PATH_ENV, true);
9416 :
9417 263090 : if (print_subprocess_help == 1)
9418 : {
9419 0 : printf (_("\nLinker options\n==============\n\n"));
9420 0 : printf (_("Use \"-Wl,OPTION\" to pass \"OPTION\""
9421 : " to the linker.\n\n"));
9422 0 : fflush (stdout);
9423 : }
9424 263090 : int value = do_spec (link_command_spec);
9425 263090 : if (value < 0)
9426 132 : errorcount = 1;
9427 263090 : linker_was_run = (tmp != execution_count);
9428 : }
9429 :
9430 : /* If options said don't run linker,
9431 : complain about input files to be given to the linker. */
9432 :
9433 294067 : if (! linker_was_run && !seen_error ())
9434 364393 : for (i = 0; (int) i < n_infiles; i++)
9435 198873 : if (explicit_link_files[i]
9436 24252 : && !(infiles[i].language && infiles[i].language[0] == '*'))
9437 : {
9438 38 : warning (0, "%s: linker input file unused because linking not done",
9439 19 : outfiles[i]);
9440 19 : if (access (outfiles[i], F_OK) < 0)
9441 : /* This is can be an indication the user specified an erroneous
9442 : separated option value, (or used the wrong prefix for an
9443 : option). */
9444 7 : error ("%s: linker input file not found: %m", outfiles[i]);
9445 : }
9446 294067 : }
9447 :
9448 : /* The end of "main". */
9449 :
9450 : void
9451 294067 : driver::final_actions () const
9452 : {
9453 : /* Delete some or all of the temporary files we made. */
9454 :
9455 294067 : if (seen_error ())
9456 30539 : delete_failure_queue ();
9457 294067 : delete_temp_files ();
9458 :
9459 294067 : if (totruncate_file != NULL && !seen_error ())
9460 : /* Truncate file specified by -truncate.
9461 : Used by lto-wrapper to reduce temporary disk-space usage. */
9462 9532 : truncate(totruncate_file, 0);
9463 :
9464 294067 : if (print_help_list)
9465 : {
9466 3 : printf (("\nFor bug reporting instructions, please see:\n"));
9467 3 : printf ("%s\n", bug_report_url);
9468 : }
9469 294067 : }
9470 :
9471 : /* Detect whether jobserver is active and working. If not drop
9472 : --jobserver-auth from MAKEFLAGS. */
9473 :
9474 : void
9475 263090 : driver::detect_jobserver () const
9476 : {
9477 263090 : jobserver_info jinfo;
9478 263090 : if (!jinfo.is_active && !jinfo.skipped_makeflags.empty ())
9479 0 : xputenv (xstrdup (jinfo.skipped_makeflags.c_str ()));
9480 263090 : }
9481 :
9482 : /* Determine what the exit code of the driver should be. */
9483 :
9484 : int
9485 294633 : driver::get_exit_code () const
9486 : {
9487 294633 : return (signal_count != 0 ? 2
9488 294633 : : seen_error () ? (pass_exit_codes ? greatest_status : 1)
9489 0 : : 0);
9490 : }
9491 :
9492 : /* Find the proper compilation spec for the file name NAME,
9493 : whose length is LENGTH. LANGUAGE is the specified language,
9494 : or 0 if this file is to be passed to the linker. */
9495 :
9496 : static struct compiler *
9497 1128740 : lookup_compiler (const char *name, size_t length, const char *language)
9498 : {
9499 1651159 : struct compiler *cp;
9500 :
9501 : /* If this was specified by the user to be a linker input, indicate that. */
9502 1651159 : if (language != 0 && language[0] == '*')
9503 : return 0;
9504 :
9505 : /* Otherwise, look for the language, if one is spec'd. */
9506 1171315 : if (language != 0)
9507 : {
9508 23961317 : for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
9509 23961317 : if (cp->suffix[0] == '@' && !strcmp (cp->suffix + 1, language))
9510 : {
9511 601084 : if (name != NULL && strcmp (name, "-") == 0
9512 2072 : && (strcmp (cp->suffix, "@c-header") == 0
9513 2072 : || strcmp (cp->suffix, "@c++-header") == 0)
9514 0 : && !have_E)
9515 0 : fatal_error (input_location,
9516 : "cannot use %<-%> as input filename for a "
9517 : "precompiled header");
9518 :
9519 : return cp;
9520 : }
9521 :
9522 0 : error ("language %s not recognized", language);
9523 0 : return 0;
9524 : }
9525 :
9526 : /* Look for a suffix. */
9527 31710289 : for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
9528 : {
9529 31662491 : if (/* The suffix `-' matches only the file name `-'. */
9530 31662491 : (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
9531 31662477 : || (strlen (cp->suffix) < length
9532 : /* See if the suffix matches the end of NAME. */
9533 31181190 : && !strcmp (cp->suffix,
9534 31181190 : name + length - strlen (cp->suffix))
9535 : ))
9536 : break;
9537 : }
9538 :
9539 : #if defined (OS2) ||defined (HAVE_DOS_BASED_FILE_SYSTEM)
9540 : /* Look again, but case-insensitively this time. */
9541 : if (cp < compilers)
9542 : for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
9543 : {
9544 : if (/* The suffix `-' matches only the file name `-'. */
9545 : (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
9546 : || (strlen (cp->suffix) < length
9547 : /* See if the suffix matches the end of NAME. */
9548 : && ((!strcmp (cp->suffix,
9549 : name + length - strlen (cp->suffix))
9550 : || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
9551 : && !strcasecmp (cp->suffix,
9552 : name + length - strlen (cp->suffix)))
9553 : ))
9554 : break;
9555 : }
9556 : #endif
9557 :
9558 570231 : if (cp >= compilers)
9559 : {
9560 522433 : if (cp->spec[0] != '@')
9561 : /* A non-alias entry: return it. */
9562 : return cp;
9563 :
9564 : /* An alias entry maps a suffix to a language.
9565 : Search for the language; pass 0 for NAME and LENGTH
9566 : to avoid infinite recursion if language not found. */
9567 522419 : return lookup_compiler (NULL, 0, cp->spec + 1);
9568 : }
9569 : return 0;
9570 : }
9571 :
9572 : static char *
9573 48176461 : save_string (const char *s, int len)
9574 : {
9575 48176461 : char *result = XNEWVEC (char, len + 1);
9576 :
9577 48176461 : gcc_checking_assert (strlen (s) >= (unsigned int) len);
9578 48176461 : memcpy (result, s, len);
9579 48176461 : result[len] = 0;
9580 48176461 : return result;
9581 : }
9582 :
9583 :
9584 : static inline void
9585 48315825 : validate_switches_from_spec (const char *spec, bool user)
9586 : {
9587 48315825 : const char *p = spec;
9588 48315825 : char c;
9589 596310798 : while ((c = *p++))
9590 499679148 : if (c == '%'
9591 499679148 : && (*p == '{'
9592 11845170 : || *p == '<'
9593 10910025 : || (*p == 'W' && *++p == '{')
9594 10910025 : || (*p == '@' && *++p == '{')))
9595 : /* We have a switch spec. */
9596 48004112 : p = validate_switches (p + 1, user, *p == '{');
9597 48315825 : }
9598 :
9599 : static void
9600 311715 : validate_all_switches (void)
9601 : {
9602 311715 : struct compiler *comp;
9603 311715 : struct spec_list *spec;
9604 :
9605 33976935 : for (comp = compilers; comp->spec; comp++)
9606 33665220 : validate_switches_from_spec (comp->spec, false);
9607 :
9608 : /* Look through the linked list of specs read from the specs file. */
9609 14650605 : for (spec = specs; spec; spec = spec->next)
9610 14338890 : validate_switches_from_spec (*spec->ptr_spec, spec->user_p);
9611 :
9612 311715 : validate_switches_from_spec (link_command_spec, false);
9613 311715 : }
9614 :
9615 : /* Look at the switch-name that comes after START and mark as valid
9616 : all supplied switches that match it. If BRACED, handle other
9617 : switches after '|' and '&', and specs after ':' until ';' or '}',
9618 : going back for more switches after ';'. Without BRACED, handle
9619 : only one atom. Return a pointer to whatever follows the handled
9620 : items, after the closing brace if BRACED. */
9621 :
9622 : static const char *
9623 207602192 : validate_switches (const char *start, bool user_spec, bool braced)
9624 : {
9625 207602192 : const char *p = start;
9626 267763187 : const char *atom;
9627 267763187 : size_t len;
9628 267763187 : int i;
9629 267763187 : bool suffix;
9630 267763187 : bool starred;
9631 :
9632 : #define SKIP_WHITE() do { while (*p == ' ' || *p == '\t') p++; } while (0)
9633 :
9634 267763187 : next_member:
9635 267763187 : suffix = false;
9636 267763187 : starred = false;
9637 :
9638 295817537 : SKIP_WHITE ();
9639 :
9640 267763187 : if (*p == '!')
9641 82916191 : p++;
9642 :
9643 267763187 : SKIP_WHITE ();
9644 267763187 : if (*p == '.' || *p == ',')
9645 0 : suffix = true, p++;
9646 :
9647 267763187 : atom = p;
9648 267763187 : while (ISIDNUM (*p) || *p == '-' || *p == '+' || *p == '='
9649 1792672981 : || *p == ',' || *p == '.' || *p == '@')
9650 1524909794 : p++;
9651 267763187 : len = p - atom;
9652 :
9653 267763187 : if (*p == '*')
9654 70759305 : starred = true, p++;
9655 :
9656 269010047 : SKIP_WHITE ();
9657 :
9658 267763187 : if (!suffix)
9659 : {
9660 : /* Mark all matching switches as valid. */
9661 6263797108 : for (i = 0; i < n_switches; i++)
9662 5996033921 : if (!strncmp (switches[i].part1, atom, len)
9663 498746043 : && (starred || switches[i].part1[len] == '\0')
9664 51883082 : && (switches[i].known || user_spec))
9665 51880006 : switches[i].validated = true;
9666 : }
9667 :
9668 267763187 : if (!braced)
9669 : return p;
9670 :
9671 266204612 : if (*p) p++;
9672 266204612 : if (*p && (p[-1] == '|' || p[-1] == '&'))
9673 41146380 : goto next_member;
9674 :
9675 225058232 : if (*p && p[-1] == ':')
9676 : {
9677 3022388636 : while (*p && *p != ';' && *p != '}')
9678 : {
9679 2848763378 : if (*p == '%')
9680 : {
9681 268074900 : p++;
9682 268074900 : if (*p == '{' || *p == '<')
9683 156792645 : p = validate_switches (p+1, user_spec, *p == '{');
9684 111282255 : else if (p[0] == 'W' && p[1] == '{')
9685 2493720 : p = validate_switches (p+2, user_spec, true);
9686 108788535 : else if (p[0] == '@' && p[1] == '{')
9687 311715 : p = validate_switches (p+2, user_spec, true);
9688 : }
9689 : else
9690 2580688478 : p++;
9691 : }
9692 :
9693 173625258 : if (*p) p++;
9694 173625258 : if (*p && p[-1] == ';')
9695 19014615 : goto next_member;
9696 : }
9697 :
9698 : return p;
9699 : #undef SKIP_WHITE
9700 : }
9701 :
9702 : struct mdswitchstr
9703 : {
9704 : const char *str;
9705 : int len;
9706 : };
9707 :
9708 : static struct mdswitchstr *mdswitches;
9709 : static int n_mdswitches;
9710 :
9711 : /* Check whether a particular argument was used. The first time we
9712 : canonicalize the switches to keep only the ones we care about. */
9713 :
9714 : struct used_arg_t
9715 : {
9716 : public:
9717 : int operator () (const char *p, int len);
9718 : void finalize ();
9719 :
9720 : private:
9721 : struct mswitchstr
9722 : {
9723 : const char *str;
9724 : const char *replace;
9725 : int len;
9726 : int rep_len;
9727 : };
9728 :
9729 : mswitchstr *mswitches;
9730 : int n_mswitches;
9731 :
9732 : };
9733 :
9734 : used_arg_t used_arg;
9735 :
9736 : int
9737 1883731 : used_arg_t::operator () (const char *p, int len)
9738 : {
9739 1883731 : int i, j;
9740 :
9741 1883731 : if (!mswitches)
9742 : {
9743 311715 : struct mswitchstr *matches;
9744 311715 : const char *q;
9745 311715 : int cnt = 0;
9746 :
9747 : /* Break multilib_matches into the component strings of string
9748 : and replacement string. */
9749 5299155 : for (q = multilib_matches; *q != '\0'; q++)
9750 4987440 : if (*q == ';')
9751 623430 : cnt++;
9752 :
9753 311715 : matches
9754 311715 : = (struct mswitchstr *) alloca ((sizeof (struct mswitchstr)) * cnt);
9755 311715 : i = 0;
9756 311715 : q = multilib_matches;
9757 935145 : while (*q != '\0')
9758 : {
9759 623430 : matches[i].str = q;
9760 2493720 : while (*q != ' ')
9761 : {
9762 1870290 : if (*q == '\0')
9763 : {
9764 0 : invalid_matches:
9765 0 : fatal_error (input_location, "multilib spec %qs is invalid",
9766 : multilib_matches);
9767 : }
9768 1870290 : q++;
9769 : }
9770 623430 : matches[i].len = q - matches[i].str;
9771 :
9772 623430 : matches[i].replace = ++q;
9773 2493720 : while (*q != ';' && *q != '\0')
9774 : {
9775 1870290 : if (*q == ' ')
9776 0 : goto invalid_matches;
9777 1870290 : q++;
9778 : }
9779 623430 : matches[i].rep_len = q - matches[i].replace;
9780 623430 : i++;
9781 623430 : if (*q == ';')
9782 623430 : q++;
9783 : }
9784 :
9785 : /* Now build a list of the replacement string for switches that we care
9786 : about. Make sure we allocate at least one entry. This prevents
9787 : xmalloc from calling fatal, and prevents us from re-executing this
9788 : block of code. */
9789 311715 : mswitches
9790 623430 : = XNEWVEC (struct mswitchstr, n_mdswitches + (n_switches ? n_switches : 1));
9791 7291964 : for (i = 0; i < n_switches; i++)
9792 6980249 : if ((switches[i].live_cond & SWITCH_IGNORE) == 0)
9793 : {
9794 6980243 : int xlen = strlen (switches[i].part1);
9795 20927896 : for (j = 0; j < cnt; j++)
9796 13958041 : if (xlen == matches[j].len
9797 19195 : && ! strncmp (switches[i].part1, matches[j].str, xlen))
9798 : {
9799 10388 : mswitches[n_mswitches].str = matches[j].replace;
9800 10388 : mswitches[n_mswitches].len = matches[j].rep_len;
9801 10388 : mswitches[n_mswitches].replace = (char *) 0;
9802 10388 : mswitches[n_mswitches].rep_len = 0;
9803 10388 : n_mswitches++;
9804 10388 : break;
9805 : }
9806 : }
9807 :
9808 : /* Add MULTILIB_DEFAULTS switches too, as long as they were not present
9809 : on the command line nor any options mutually incompatible with
9810 : them. */
9811 623430 : for (i = 0; i < n_mdswitches; i++)
9812 : {
9813 311715 : const char *r;
9814 :
9815 623430 : for (q = multilib_options; *q != '\0'; *q && q++)
9816 : {
9817 311715 : while (*q == ' ')
9818 0 : q++;
9819 :
9820 311715 : r = q;
9821 311715 : while (strncmp (q, mdswitches[i].str, mdswitches[i].len) != 0
9822 311715 : || strchr (" /", q[mdswitches[i].len]) == NULL)
9823 : {
9824 0 : while (*q != ' ' && *q != '/' && *q != '\0')
9825 0 : q++;
9826 0 : if (*q != '/')
9827 : break;
9828 0 : q++;
9829 : }
9830 :
9831 311715 : if (*q != ' ' && *q != '\0')
9832 : {
9833 620985 : while (*r != ' ' && *r != '\0')
9834 : {
9835 : q = r;
9836 2483940 : while (*q != ' ' && *q != '/' && *q != '\0')
9837 1862955 : q++;
9838 :
9839 620985 : if (used_arg (r, q - r))
9840 : break;
9841 :
9842 610597 : if (*q != '/')
9843 : {
9844 301327 : mswitches[n_mswitches].str = mdswitches[i].str;
9845 301327 : mswitches[n_mswitches].len = mdswitches[i].len;
9846 301327 : mswitches[n_mswitches].replace = (char *) 0;
9847 301327 : mswitches[n_mswitches].rep_len = 0;
9848 301327 : n_mswitches++;
9849 301327 : break;
9850 : }
9851 :
9852 309270 : r = q + 1;
9853 : }
9854 : break;
9855 : }
9856 : }
9857 : }
9858 : }
9859 :
9860 2523047 : for (i = 0; i < n_mswitches; i++)
9861 1281077 : if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len))
9862 : return 1;
9863 :
9864 : return 0;
9865 : }
9866 :
9867 1144 : void used_arg_t::finalize ()
9868 : {
9869 1144 : XDELETEVEC (mswitches);
9870 1144 : mswitches = NULL;
9871 1144 : n_mswitches = 0;
9872 1144 : }
9873 :
9874 :
9875 : static int
9876 1285054 : default_arg (const char *p, int len)
9877 : {
9878 1285054 : int i;
9879 :
9880 1922004 : for (i = 0; i < n_mdswitches; i++)
9881 1285054 : if (len == mdswitches[i].len && ! strncmp (p, mdswitches[i].str, len))
9882 : return 1;
9883 :
9884 : return 0;
9885 : }
9886 :
9887 : /* Use multilib_dir as key to find corresponding multilib_os_dir and
9888 : multiarch_dir. */
9889 :
9890 : static void
9891 0 : find_multilib_os_dir_by_multilib_dir (const char *multilib_dir,
9892 : const char **p_multilib_os_dir,
9893 : const char **p_multiarch_dir)
9894 : {
9895 0 : const char *p = multilib_select;
9896 0 : unsigned int this_path_len;
9897 0 : const char *this_path;
9898 0 : int ok = 0;
9899 :
9900 0 : while (*p != '\0')
9901 : {
9902 : /* Ignore newlines. */
9903 0 : if (*p == '\n')
9904 : {
9905 0 : ++p;
9906 0 : continue;
9907 : }
9908 :
9909 : /* Get the initial path. */
9910 : this_path = p;
9911 0 : while (*p != ' ')
9912 : {
9913 0 : if (*p == '\0')
9914 : {
9915 0 : fatal_error (input_location, "multilib select %qs %qs is invalid",
9916 : multilib_select, multilib_reuse);
9917 : }
9918 0 : ++p;
9919 : }
9920 0 : this_path_len = p - this_path;
9921 :
9922 0 : ok = 0;
9923 :
9924 : /* Skip any arguments, we don't care at this stage. */
9925 0 : while (*++p != ';');
9926 :
9927 0 : if (this_path_len != 1
9928 0 : || this_path[0] != '.')
9929 : {
9930 0 : char *new_multilib_dir = XNEWVEC (char, this_path_len + 1);
9931 0 : char *q;
9932 :
9933 0 : strncpy (new_multilib_dir, this_path, this_path_len);
9934 0 : new_multilib_dir[this_path_len] = '\0';
9935 0 : q = strchr (new_multilib_dir, ':');
9936 0 : if (q != NULL)
9937 0 : *q = '\0';
9938 :
9939 0 : if (strcmp (new_multilib_dir, multilib_dir) == 0)
9940 0 : ok = 1;
9941 : }
9942 :
9943 : /* Found matched multilib_dir, update multilib_os_dir and
9944 : multiarch_dir. */
9945 0 : if (ok)
9946 : {
9947 0 : const char *q = this_path, *end = this_path + this_path_len;
9948 :
9949 0 : while (q < end && *q != ':')
9950 0 : q++;
9951 0 : if (q < end)
9952 : {
9953 0 : const char *q2 = q + 1, *ml_end = end;
9954 0 : char *new_multilib_os_dir;
9955 :
9956 0 : while (q2 < end && *q2 != ':')
9957 0 : q2++;
9958 0 : if (*q2 == ':')
9959 0 : ml_end = q2;
9960 0 : if (ml_end - q == 1)
9961 0 : *p_multilib_os_dir = xstrdup (".");
9962 : else
9963 : {
9964 0 : new_multilib_os_dir = XNEWVEC (char, ml_end - q);
9965 0 : memcpy (new_multilib_os_dir, q + 1, ml_end - q - 1);
9966 0 : new_multilib_os_dir[ml_end - q - 1] = '\0';
9967 0 : *p_multilib_os_dir = new_multilib_os_dir;
9968 : }
9969 :
9970 0 : if (q2 < end && *q2 == ':')
9971 : {
9972 0 : char *new_multiarch_dir = XNEWVEC (char, end - q2);
9973 0 : memcpy (new_multiarch_dir, q2 + 1, end - q2 - 1);
9974 0 : new_multiarch_dir[end - q2 - 1] = '\0';
9975 0 : *p_multiarch_dir = new_multiarch_dir;
9976 : }
9977 : break;
9978 : }
9979 : }
9980 0 : ++p;
9981 : }
9982 0 : }
9983 :
9984 : /* Work out the subdirectory to use based on the options. The format of
9985 : multilib_select is a list of elements. Each element is a subdirectory
9986 : name followed by a list of options followed by a semicolon. The format
9987 : of multilib_exclusions is the same, but without the preceding
9988 : directory. First gcc will check the exclusions, if none of the options
9989 : beginning with an exclamation point are present, and all of the other
9990 : options are present, then we will ignore this completely. Passing
9991 : that, gcc will consider each multilib_select in turn using the same
9992 : rules for matching the options. If a match is found, that subdirectory
9993 : will be used.
9994 : A subdirectory name is optionally followed by a colon and the corresponding
9995 : multiarch name. */
9996 :
9997 : static void
9998 311715 : set_multilib_dir (void)
9999 : {
10000 311715 : const char *p;
10001 311715 : unsigned int this_path_len;
10002 311715 : const char *this_path, *this_arg;
10003 311715 : const char *start, *end;
10004 311715 : int not_arg;
10005 311715 : int ok, ndfltok, first;
10006 :
10007 311715 : n_mdswitches = 0;
10008 311715 : start = multilib_defaults;
10009 311715 : while (*start == ' ' || *start == '\t')
10010 0 : start++;
10011 623430 : while (*start != '\0')
10012 : {
10013 311715 : n_mdswitches++;
10014 1246860 : while (*start != ' ' && *start != '\t' && *start != '\0')
10015 935145 : start++;
10016 311715 : while (*start == ' ' || *start == '\t')
10017 0 : start++;
10018 : }
10019 :
10020 311715 : if (n_mdswitches)
10021 : {
10022 311715 : int i = 0;
10023 :
10024 311715 : mdswitches = XNEWVEC (struct mdswitchstr, n_mdswitches);
10025 311715 : for (start = multilib_defaults; *start != '\0'; start = end + 1)
10026 : {
10027 311715 : while (*start == ' ' || *start == '\t')
10028 0 : start++;
10029 :
10030 311715 : if (*start == '\0')
10031 : break;
10032 :
10033 935145 : for (end = start + 1;
10034 935145 : *end != ' ' && *end != '\t' && *end != '\0'; end++)
10035 : ;
10036 :
10037 311715 : obstack_grow (&multilib_obstack, start, end - start);
10038 311715 : obstack_1grow (&multilib_obstack, 0);
10039 311715 : mdswitches[i].str = XOBFINISH (&multilib_obstack, const char *);
10040 311715 : mdswitches[i++].len = end - start;
10041 :
10042 311715 : if (*end == '\0')
10043 : break;
10044 : }
10045 : }
10046 :
10047 311715 : p = multilib_exclusions;
10048 311715 : while (*p != '\0')
10049 : {
10050 : /* Ignore newlines. */
10051 0 : if (*p == '\n')
10052 : {
10053 0 : ++p;
10054 0 : continue;
10055 : }
10056 :
10057 : /* Check the arguments. */
10058 : ok = 1;
10059 0 : while (*p != ';')
10060 : {
10061 0 : if (*p == '\0')
10062 : {
10063 0 : invalid_exclusions:
10064 0 : fatal_error (input_location, "multilib exclusions %qs is invalid",
10065 : multilib_exclusions);
10066 : }
10067 :
10068 0 : if (! ok)
10069 : {
10070 0 : ++p;
10071 0 : continue;
10072 : }
10073 :
10074 0 : this_arg = p;
10075 0 : while (*p != ' ' && *p != ';')
10076 : {
10077 0 : if (*p == '\0')
10078 0 : goto invalid_exclusions;
10079 0 : ++p;
10080 : }
10081 :
10082 0 : if (*this_arg != '!')
10083 : not_arg = 0;
10084 : else
10085 : {
10086 0 : not_arg = 1;
10087 0 : ++this_arg;
10088 : }
10089 :
10090 0 : ok = used_arg (this_arg, p - this_arg);
10091 0 : if (not_arg)
10092 0 : ok = ! ok;
10093 :
10094 0 : if (*p == ' ')
10095 0 : ++p;
10096 : }
10097 :
10098 0 : if (ok)
10099 : return;
10100 :
10101 0 : ++p;
10102 : }
10103 :
10104 311715 : first = 1;
10105 311715 : p = multilib_select;
10106 :
10107 : /* Append multilib reuse rules if any. With those rules, we can reuse
10108 : one multilib for certain different options sets. */
10109 311715 : if (strlen (multilib_reuse) > 0)
10110 0 : p = concat (p, multilib_reuse, NULL);
10111 :
10112 631373 : while (*p != '\0')
10113 : {
10114 : /* Ignore newlines. */
10115 631373 : if (*p == '\n')
10116 : {
10117 0 : ++p;
10118 0 : continue;
10119 : }
10120 :
10121 : /* Get the initial path. */
10122 : this_path = p;
10123 4443440 : while (*p != ' ')
10124 : {
10125 3812067 : if (*p == '\0')
10126 : {
10127 0 : invalid_select:
10128 0 : fatal_error (input_location, "multilib select %qs %qs is invalid",
10129 : multilib_select, multilib_reuse);
10130 : }
10131 3812067 : ++p;
10132 : }
10133 631373 : this_path_len = p - this_path;
10134 :
10135 : /* Check the arguments. */
10136 631373 : ok = 1;
10137 631373 : ndfltok = 1;
10138 631373 : ++p;
10139 1894119 : while (*p != ';')
10140 : {
10141 1262746 : if (*p == '\0')
10142 0 : goto invalid_select;
10143 :
10144 1262746 : if (! ok)
10145 : {
10146 0 : ++p;
10147 0 : continue;
10148 : }
10149 :
10150 5994072 : this_arg = p;
10151 5994072 : while (*p != ' ' && *p != ';')
10152 : {
10153 4731326 : if (*p == '\0')
10154 0 : goto invalid_select;
10155 4731326 : ++p;
10156 : }
10157 :
10158 1262746 : if (*this_arg != '!')
10159 : not_arg = 0;
10160 : else
10161 : {
10162 943088 : not_arg = 1;
10163 943088 : ++this_arg;
10164 : }
10165 :
10166 : /* If this is a default argument, we can just ignore it.
10167 : This is true even if this_arg begins with '!'. Beginning
10168 : with '!' does not mean that this argument is necessarily
10169 : inappropriate for this library: it merely means that
10170 : there is a more specific library which uses this
10171 : argument. If this argument is a default, we need not
10172 : consider that more specific library. */
10173 1262746 : ok = used_arg (this_arg, p - this_arg);
10174 1262746 : if (not_arg)
10175 943088 : ok = ! ok;
10176 :
10177 1262746 : if (! ok)
10178 327601 : ndfltok = 0;
10179 :
10180 1262746 : if (default_arg (this_arg, p - this_arg))
10181 631373 : ok = 1;
10182 :
10183 1262746 : if (*p == ' ')
10184 631373 : ++p;
10185 : }
10186 :
10187 631373 : if (ok && first)
10188 : {
10189 311715 : if (this_path_len != 1
10190 303772 : || this_path[0] != '.')
10191 : {
10192 7943 : char *new_multilib_dir = XNEWVEC (char, this_path_len + 1);
10193 7943 : char *q;
10194 :
10195 7943 : strncpy (new_multilib_dir, this_path, this_path_len);
10196 7943 : new_multilib_dir[this_path_len] = '\0';
10197 7943 : q = strchr (new_multilib_dir, ':');
10198 7943 : if (q != NULL)
10199 7943 : *q = '\0';
10200 7943 : multilib_dir = new_multilib_dir;
10201 : }
10202 : first = 0;
10203 : }
10204 :
10205 631373 : if (ndfltok)
10206 : {
10207 311715 : const char *q = this_path, *end = this_path + this_path_len;
10208 :
10209 935145 : while (q < end && *q != ':')
10210 623430 : q++;
10211 311715 : if (q < end)
10212 : {
10213 311715 : const char *q2 = q + 1, *ml_end = end;
10214 311715 : char *new_multilib_os_dir;
10215 :
10216 2789549 : while (q2 < end && *q2 != ':')
10217 2477834 : q2++;
10218 311715 : if (*q2 == ':')
10219 0 : ml_end = q2;
10220 311715 : if (ml_end - q == 1)
10221 0 : multilib_os_dir = xstrdup (".");
10222 : else
10223 : {
10224 311715 : new_multilib_os_dir = XNEWVEC (char, ml_end - q);
10225 311715 : memcpy (new_multilib_os_dir, q + 1, ml_end - q - 1);
10226 311715 : new_multilib_os_dir[ml_end - q - 1] = '\0';
10227 311715 : multilib_os_dir = new_multilib_os_dir;
10228 : }
10229 :
10230 311715 : if (q2 < end && *q2 == ':')
10231 : {
10232 0 : char *new_multiarch_dir = XNEWVEC (char, end - q2);
10233 0 : memcpy (new_multiarch_dir, q2 + 1, end - q2 - 1);
10234 0 : new_multiarch_dir[end - q2 - 1] = '\0';
10235 0 : multiarch_dir = new_multiarch_dir;
10236 : }
10237 : break;
10238 : }
10239 : }
10240 :
10241 319658 : ++p;
10242 : }
10243 :
10244 623430 : multilib_dir =
10245 311715 : targetm_common.compute_multilib (
10246 : switches,
10247 : n_switches,
10248 : multilib_dir,
10249 : multilib_defaults,
10250 : multilib_select,
10251 : multilib_matches,
10252 : multilib_exclusions,
10253 : multilib_reuse);
10254 :
10255 311715 : if (multilib_dir == NULL && multilib_os_dir != NULL
10256 303772 : && strcmp (multilib_os_dir, ".") == 0)
10257 : {
10258 0 : free (const_cast<char *> (multilib_os_dir));
10259 0 : multilib_os_dir = NULL;
10260 : }
10261 311715 : else if (multilib_dir != NULL && multilib_os_dir == NULL)
10262 : {
10263 : /* Give second chance to search matched multilib_os_dir again by matching
10264 : the multilib_dir since some target may use TARGET_COMPUTE_MULTILIB
10265 : hook rather than the builtin way. */
10266 0 : find_multilib_os_dir_by_multilib_dir (multilib_dir, &multilib_os_dir,
10267 : &multiarch_dir);
10268 :
10269 0 : if (multilib_os_dir == NULL)
10270 0 : multilib_os_dir = multilib_dir;
10271 : }
10272 : }
10273 :
10274 : /* Print out the multiple library subdirectory selection
10275 : information. This prints out a series of lines. Each line looks
10276 : like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
10277 : required. Only the desired options are printed out, the negative
10278 : matches. The options are print without a leading dash. There are
10279 : no spaces to make it easy to use the information in the shell.
10280 : Each subdirectory is printed only once. This assumes the ordering
10281 : generated by the genmultilib script. Also, we leave out ones that match
10282 : the exclusions. */
10283 :
10284 : static void
10285 5577 : print_multilib_info (void)
10286 : {
10287 5577 : const char *p = multilib_select;
10288 5577 : const char *last_path = 0, *this_path;
10289 5577 : int skip;
10290 5577 : int not_arg;
10291 5577 : unsigned int last_path_len = 0;
10292 :
10293 22308 : while (*p != '\0')
10294 : {
10295 16731 : skip = 0;
10296 : /* Ignore newlines. */
10297 16731 : if (*p == '\n')
10298 : {
10299 0 : ++p;
10300 0 : continue;
10301 : }
10302 :
10303 : /* Get the initial path. */
10304 : this_path = p;
10305 133848 : while (*p != ' ')
10306 : {
10307 117117 : if (*p == '\0')
10308 : {
10309 0 : invalid_select:
10310 0 : fatal_error (input_location,
10311 : "multilib select %qs is invalid", multilib_select);
10312 : }
10313 :
10314 117117 : ++p;
10315 : }
10316 :
10317 : /* When --disable-multilib was used but target defines
10318 : MULTILIB_OSDIRNAMES, entries starting with .: (and not starting
10319 : with .:: for multiarch configurations) are there just to find
10320 : multilib_os_dir, so skip them from output. */
10321 16731 : if (this_path[0] == '.' && this_path[1] == ':' && this_path[2] != ':')
10322 16731 : skip = 1;
10323 :
10324 : /* Check for matches with the multilib_exclusions. We don't bother
10325 : with the '!' in either list. If any of the exclusion rules match
10326 : all of its options with the select rule, we skip it. */
10327 16731 : {
10328 16731 : const char *e = multilib_exclusions;
10329 16731 : const char *this_arg;
10330 :
10331 16731 : while (*e != '\0')
10332 : {
10333 0 : int m = 1;
10334 : /* Ignore newlines. */
10335 0 : if (*e == '\n')
10336 : {
10337 0 : ++e;
10338 0 : continue;
10339 : }
10340 :
10341 : /* Check the arguments. */
10342 0 : while (*e != ';')
10343 : {
10344 0 : const char *q;
10345 0 : int mp = 0;
10346 :
10347 0 : if (*e == '\0')
10348 : {
10349 0 : invalid_exclusion:
10350 0 : fatal_error (input_location,
10351 : "multilib exclusion %qs is invalid",
10352 : multilib_exclusions);
10353 : }
10354 :
10355 0 : if (! m)
10356 : {
10357 0 : ++e;
10358 0 : continue;
10359 : }
10360 :
10361 : this_arg = e;
10362 :
10363 0 : while (*e != ' ' && *e != ';')
10364 : {
10365 0 : if (*e == '\0')
10366 0 : goto invalid_exclusion;
10367 0 : ++e;
10368 : }
10369 :
10370 0 : q = p + 1;
10371 0 : while (*q != ';')
10372 : {
10373 0 : const char *arg;
10374 0 : int len = e - this_arg;
10375 :
10376 0 : if (*q == '\0')
10377 0 : goto invalid_select;
10378 :
10379 : arg = q;
10380 :
10381 0 : while (*q != ' ' && *q != ';')
10382 : {
10383 0 : if (*q == '\0')
10384 0 : goto invalid_select;
10385 0 : ++q;
10386 : }
10387 :
10388 0 : if (! strncmp (arg, this_arg,
10389 0 : (len < q - arg) ? q - arg : len)
10390 0 : || default_arg (this_arg, e - this_arg))
10391 : {
10392 : mp = 1;
10393 : break;
10394 : }
10395 :
10396 0 : if (*q == ' ')
10397 0 : ++q;
10398 : }
10399 :
10400 0 : if (! mp)
10401 0 : m = 0;
10402 :
10403 0 : if (*e == ' ')
10404 0 : ++e;
10405 : }
10406 :
10407 0 : if (m)
10408 : {
10409 : skip = 1;
10410 : break;
10411 : }
10412 :
10413 0 : if (*e != '\0')
10414 0 : ++e;
10415 : }
10416 : }
10417 :
10418 16731 : if (! skip)
10419 : {
10420 : /* If this is a duplicate, skip it. */
10421 33462 : skip = (last_path != 0
10422 11154 : && (unsigned int) (p - this_path) == last_path_len
10423 16731 : && ! filename_ncmp (last_path, this_path, last_path_len));
10424 :
10425 16731 : last_path = this_path;
10426 16731 : last_path_len = p - this_path;
10427 : }
10428 :
10429 : /* If all required arguments are default arguments, and no default
10430 : arguments appear in the ! argument list, then we can skip it.
10431 : We will already have printed a directory identical to this one
10432 : which does not require that default argument. */
10433 16731 : if (! skip)
10434 : {
10435 16731 : const char *q;
10436 16731 : bool default_arg_ok = false;
10437 :
10438 16731 : q = p + 1;
10439 27885 : while (*q != ';')
10440 : {
10441 22308 : const char *arg;
10442 :
10443 22308 : if (*q == '\0')
10444 0 : goto invalid_select;
10445 :
10446 22308 : if (*q == '!')
10447 : {
10448 16731 : not_arg = 1;
10449 16731 : q++;
10450 : }
10451 : else
10452 : not_arg = 0;
10453 22308 : arg = q;
10454 :
10455 89232 : while (*q != ' ' && *q != ';')
10456 : {
10457 66924 : if (*q == '\0')
10458 0 : goto invalid_select;
10459 66924 : ++q;
10460 : }
10461 :
10462 22308 : if (default_arg (arg, q - arg))
10463 : {
10464 : /* Stop checking if any default arguments appeared in not
10465 : list. */
10466 16731 : if (not_arg)
10467 : {
10468 : default_arg_ok = false;
10469 : break;
10470 : }
10471 :
10472 : default_arg_ok = true;
10473 : }
10474 5577 : else if (!not_arg)
10475 : {
10476 : /* Stop checking if any required argument is not provided by
10477 : default arguments. */
10478 : default_arg_ok = false;
10479 : break;
10480 : }
10481 :
10482 11154 : if (*q == ' ')
10483 5577 : ++q;
10484 : }
10485 :
10486 : /* Make sure all default argument is OK for this multi-lib set. */
10487 16731 : if (default_arg_ok)
10488 : skip = 1;
10489 : else
10490 : skip = 0;
10491 : }
10492 :
10493 : if (! skip)
10494 : {
10495 : const char *p1;
10496 :
10497 27885 : for (p1 = last_path; p1 < p && *p1 != ':'; p1++)
10498 16731 : putchar (*p1);
10499 11154 : putchar (';');
10500 : }
10501 :
10502 16731 : ++p;
10503 83655 : while (*p != ';')
10504 : {
10505 66924 : int use_arg;
10506 :
10507 66924 : if (*p == '\0')
10508 0 : goto invalid_select;
10509 :
10510 66924 : if (skip)
10511 : {
10512 44616 : ++p;
10513 44616 : continue;
10514 : }
10515 :
10516 22308 : use_arg = *p != '!';
10517 :
10518 22308 : if (use_arg)
10519 5577 : putchar ('@');
10520 :
10521 105963 : while (*p != ' ' && *p != ';')
10522 : {
10523 83655 : if (*p == '\0')
10524 0 : goto invalid_select;
10525 83655 : if (use_arg)
10526 16731 : putchar (*p);
10527 83655 : ++p;
10528 : }
10529 :
10530 22308 : if (*p == ' ')
10531 11154 : ++p;
10532 : }
10533 :
10534 16731 : if (! skip)
10535 : {
10536 : /* If there are extra options, print them now. */
10537 11154 : if (multilib_extra && *multilib_extra)
10538 : {
10539 : int print_at = true;
10540 : const char *q;
10541 :
10542 0 : for (q = multilib_extra; *q != '\0'; q++)
10543 : {
10544 0 : if (*q == ' ')
10545 : print_at = true;
10546 : else
10547 : {
10548 0 : if (print_at)
10549 0 : putchar ('@');
10550 0 : putchar (*q);
10551 0 : print_at = false;
10552 : }
10553 : }
10554 : }
10555 :
10556 11154 : putchar ('\n');
10557 : }
10558 :
10559 16731 : ++p;
10560 : }
10561 5577 : }
10562 :
10563 : /* getenv built-in spec function.
10564 :
10565 : Returns the value of the environment variable given by its first argument,
10566 : concatenated with the second argument. If the variable is not defined, a
10567 : fatal error is issued unless such undefs are internally allowed, in which
10568 : case the variable name prefixed by a '/' is used as the variable value.
10569 :
10570 : The leading '/' allows using the result at a spot where a full path would
10571 : normally be expected and when the actual value doesn't really matter since
10572 : undef vars are allowed. */
10573 :
10574 : static const char *
10575 0 : getenv_spec_function (int argc, const char **argv)
10576 : {
10577 0 : const char *value;
10578 0 : const char *varname;
10579 :
10580 0 : char *result;
10581 0 : char *ptr;
10582 0 : size_t len;
10583 :
10584 0 : if (argc != 2)
10585 : return NULL;
10586 :
10587 0 : varname = argv[0];
10588 0 : value = env.get (varname);
10589 :
10590 : /* If the variable isn't defined and this is allowed, craft our expected
10591 : return value. Assume variable names used in specs strings don't contain
10592 : any active spec character so don't need escaping. */
10593 0 : if (!value && spec_undefvar_allowed)
10594 : {
10595 0 : result = XNEWVAR (char, strlen(varname) + 2);
10596 0 : sprintf (result, "/%s", varname);
10597 0 : return result;
10598 : }
10599 :
10600 0 : if (!value)
10601 0 : fatal_error (input_location,
10602 : "environment variable %qs not defined", varname);
10603 :
10604 : /* We have to escape every character of the environment variable so
10605 : they are not interpreted as active spec characters. A
10606 : particularly painful case is when we are reading a variable
10607 : holding a windows path complete with \ separators. */
10608 0 : len = strlen (value) * 2 + strlen (argv[1]) + 1;
10609 0 : result = XNEWVAR (char, len);
10610 0 : for (ptr = result; *value; ptr += 2)
10611 : {
10612 0 : ptr[0] = '\\';
10613 0 : ptr[1] = *value++;
10614 : }
10615 :
10616 0 : strcpy (ptr, argv[1]);
10617 :
10618 0 : return result;
10619 : }
10620 :
10621 : /* if-exists built-in spec function.
10622 :
10623 : Checks to see if the file specified by the absolute pathname in
10624 : ARGS exists. Returns that pathname if found.
10625 :
10626 : The usual use for this function is to check for a library file
10627 : (whose name has been expanded with %s). */
10628 :
10629 : static const char *
10630 0 : if_exists_spec_function (int argc, const char **argv)
10631 : {
10632 : /* Must have only one argument. */
10633 0 : if (argc == 1 && IS_ABSOLUTE_PATH (argv[0]) && ! access (argv[0], R_OK))
10634 0 : return argv[0];
10635 :
10636 : return NULL;
10637 : }
10638 :
10639 : /* if-exists-else built-in spec function.
10640 :
10641 : This is like if-exists, but takes an additional argument which
10642 : is returned if the first argument does not exist. */
10643 :
10644 : static const char *
10645 0 : if_exists_else_spec_function (int argc, const char **argv)
10646 : {
10647 : /* Must have exactly two arguments. */
10648 0 : if (argc != 2)
10649 : return NULL;
10650 :
10651 0 : if (IS_ABSOLUTE_PATH (argv[0]) && ! access (argv[0], R_OK))
10652 0 : return argv[0];
10653 :
10654 0 : return argv[1];
10655 : }
10656 :
10657 : /* if-exists-then-else built-in spec function.
10658 :
10659 : Checks to see if the file specified by the absolute pathname in
10660 : the first arg exists. Returns the second arg if so, otherwise returns
10661 : the third arg if it is present. */
10662 :
10663 : static const char *
10664 0 : if_exists_then_else_spec_function (int argc, const char **argv)
10665 : {
10666 :
10667 : /* Must have two or three arguments. */
10668 0 : if (argc != 2 && argc != 3)
10669 : return NULL;
10670 :
10671 0 : if (IS_ABSOLUTE_PATH (argv[0]) && ! access (argv[0], R_OK))
10672 0 : return argv[1];
10673 :
10674 0 : if (argc == 3)
10675 0 : return argv[2];
10676 :
10677 : return NULL;
10678 : }
10679 :
10680 : /* sanitize built-in spec function.
10681 :
10682 : This returns non-NULL, if sanitizing address, thread or
10683 : any of the undefined behavior sanitizers. */
10684 :
10685 : static const char *
10686 881442 : sanitize_spec_function (int argc, const char **argv)
10687 : {
10688 881442 : if (argc != 1)
10689 : return NULL;
10690 :
10691 881442 : if (strcmp (argv[0], "address") == 0)
10692 388936 : return (flag_sanitize & SANITIZE_USER_ADDRESS) ? "" : NULL;
10693 685566 : if (strcmp (argv[0], "hwaddress") == 0)
10694 391372 : return (flag_sanitize & SANITIZE_USER_HWADDRESS) ? "" : NULL;
10695 489690 : if (strcmp (argv[0], "kernel-address") == 0)
10696 0 : return (flag_sanitize & SANITIZE_KERNEL_ADDRESS) ? "" : NULL;
10697 489690 : if (strcmp (argv[0], "kernel-hwaddress") == 0)
10698 0 : return (flag_sanitize & SANITIZE_KERNEL_HWADDRESS) ? "" : NULL;
10699 489690 : if (strcmp (argv[0], "memtag-stack") == 0)
10700 0 : return (flag_sanitize & SANITIZE_MEMTAG_STACK) ? "" : NULL;
10701 489690 : if (strcmp (argv[0], "thread") == 0)
10702 391168 : return (flag_sanitize & SANITIZE_THREAD) ? "" : NULL;
10703 293814 : if (strcmp (argv[0], "undefined") == 0)
10704 97938 : return ((flag_sanitize
10705 97938 : & ~flag_sanitize_trap
10706 97938 : & (SANITIZE_UNDEFINED | SANITIZE_UNDEFINED_NONDEFAULT)))
10707 193922 : ? "" : NULL;
10708 195876 : if (strcmp (argv[0], "leak") == 0)
10709 195876 : return ((flag_sanitize
10710 195876 : & (SANITIZE_ADDRESS | SANITIZE_LEAK | SANITIZE_THREAD))
10711 391752 : == SANITIZE_LEAK) ? "" : NULL;
10712 : return NULL;
10713 : }
10714 :
10715 : /* replace-outfile built-in spec function.
10716 :
10717 : This looks for the first argument in the outfiles array's name and
10718 : replaces it with the second argument. */
10719 :
10720 : static const char *
10721 0 : replace_outfile_spec_function (int argc, const char **argv)
10722 : {
10723 0 : int i;
10724 : /* Must have exactly two arguments. */
10725 0 : if (argc != 2)
10726 0 : abort ();
10727 :
10728 0 : for (i = 0; i < n_infiles; i++)
10729 : {
10730 0 : if (outfiles[i] && !filename_cmp (outfiles[i], argv[0]))
10731 0 : outfiles[i] = xstrdup (argv[1]);
10732 : }
10733 0 : return NULL;
10734 : }
10735 :
10736 : /* remove-outfile built-in spec function.
10737 : *
10738 : * This looks for the first argument in the outfiles array's name and
10739 : * removes it. */
10740 :
10741 : static const char *
10742 0 : remove_outfile_spec_function (int argc, const char **argv)
10743 : {
10744 0 : int i;
10745 : /* Must have exactly one argument. */
10746 0 : if (argc != 1)
10747 0 : abort ();
10748 :
10749 0 : for (i = 0; i < n_infiles; i++)
10750 : {
10751 0 : if (outfiles[i] && !filename_cmp (outfiles[i], argv[0]))
10752 0 : outfiles[i] = NULL;
10753 : }
10754 0 : return NULL;
10755 : }
10756 :
10757 : /* Given two version numbers, compares the two numbers.
10758 : A version number must match the regular expression
10759 : ([1-9][0-9]*|0)(\.([1-9][0-9]*|0))*
10760 : */
10761 : static int
10762 0 : compare_version_strings (const char *v1, const char *v2)
10763 : {
10764 0 : int rresult;
10765 0 : regex_t r;
10766 :
10767 0 : if (regcomp (&r, "^([1-9][0-9]*|0)(\\.([1-9][0-9]*|0))*$",
10768 : REG_EXTENDED | REG_NOSUB) != 0)
10769 0 : abort ();
10770 0 : rresult = regexec (&r, v1, 0, NULL, 0);
10771 0 : if (rresult == REG_NOMATCH)
10772 0 : fatal_error (input_location, "invalid version number %qs", v1);
10773 0 : else if (rresult != 0)
10774 0 : abort ();
10775 0 : rresult = regexec (&r, v2, 0, NULL, 0);
10776 0 : if (rresult == REG_NOMATCH)
10777 0 : fatal_error (input_location, "invalid version number %qs", v2);
10778 0 : else if (rresult != 0)
10779 0 : abort ();
10780 :
10781 0 : return strverscmp (v1, v2);
10782 : }
10783 :
10784 :
10785 : /* version_compare built-in spec function.
10786 :
10787 : This takes an argument of the following form:
10788 :
10789 : <comparison-op> <arg1> [<arg2>] <switch> <result>
10790 :
10791 : and produces "result" if the comparison evaluates to true,
10792 : and nothing if it doesn't.
10793 :
10794 : The supported <comparison-op> values are:
10795 :
10796 : >= true if switch is a later (or same) version than arg1
10797 : !> opposite of >=
10798 : < true if switch is an earlier version than arg1
10799 : !< opposite of <
10800 : >< true if switch is arg1 or later, and earlier than arg2
10801 : <> true if switch is earlier than arg1 or is arg2 or later
10802 :
10803 : If the switch is not present, the condition is false unless
10804 : the first character of the <comparison-op> is '!'.
10805 :
10806 : For example,
10807 : %:version-compare(>= 10.3 mmacosx-version-min= -lmx)
10808 : adds -lmx if -mmacosx-version-min=10.3.9 was passed. */
10809 :
10810 : static const char *
10811 0 : version_compare_spec_function (int argc, const char **argv)
10812 : {
10813 0 : int comp1, comp2;
10814 0 : size_t switch_len;
10815 0 : const char *switch_value = NULL;
10816 0 : int nargs = 1, i;
10817 0 : bool result;
10818 :
10819 0 : if (argc < 3)
10820 0 : fatal_error (input_location, "too few arguments to %%:version-compare");
10821 0 : if (argv[0][0] == '\0')
10822 0 : abort ();
10823 0 : if ((argv[0][1] == '<' || argv[0][1] == '>') && argv[0][0] != '!')
10824 0 : nargs = 2;
10825 0 : if (argc != nargs + 3)
10826 0 : fatal_error (input_location, "too many arguments to %%:version-compare");
10827 :
10828 0 : switch_len = strlen (argv[nargs + 1]);
10829 0 : for (i = 0; i < n_switches; i++)
10830 0 : if (!strncmp (switches[i].part1, argv[nargs + 1], switch_len)
10831 0 : && check_live_switch (i, switch_len))
10832 0 : switch_value = switches[i].part1 + switch_len;
10833 :
10834 0 : if (switch_value == NULL)
10835 : comp1 = comp2 = -1;
10836 : else
10837 : {
10838 0 : comp1 = compare_version_strings (switch_value, argv[1]);
10839 0 : if (nargs == 2)
10840 0 : comp2 = compare_version_strings (switch_value, argv[2]);
10841 : else
10842 : comp2 = -1; /* This value unused. */
10843 : }
10844 :
10845 0 : switch (argv[0][0] << 8 | argv[0][1])
10846 : {
10847 0 : case '>' << 8 | '=':
10848 0 : result = comp1 >= 0;
10849 0 : break;
10850 0 : case '!' << 8 | '<':
10851 0 : result = comp1 >= 0 || switch_value == NULL;
10852 0 : break;
10853 0 : case '<' << 8:
10854 0 : result = comp1 < 0;
10855 0 : break;
10856 0 : case '!' << 8 | '>':
10857 0 : result = comp1 < 0 || switch_value == NULL;
10858 0 : break;
10859 0 : case '>' << 8 | '<':
10860 0 : result = comp1 >= 0 && comp2 < 0;
10861 0 : break;
10862 0 : case '<' << 8 | '>':
10863 0 : result = comp1 < 0 || comp2 >= 0;
10864 0 : break;
10865 :
10866 0 : default:
10867 0 : fatal_error (input_location,
10868 : "unknown operator %qs in %%:version-compare", argv[0]);
10869 : }
10870 0 : if (! result)
10871 : return NULL;
10872 :
10873 0 : return argv[nargs + 2];
10874 : }
10875 :
10876 : /* %:include builtin spec function. This differs from %include in that it
10877 : can be nested inside a spec, and thus be conditionalized. It takes
10878 : one argument, the filename, and looks for it in the startfile path.
10879 : The result is always NULL, i.e. an empty expansion. */
10880 :
10881 : static const char *
10882 31571 : include_spec_function (int argc, const char **argv)
10883 : {
10884 31571 : char *file;
10885 :
10886 31571 : if (argc != 1)
10887 0 : abort ();
10888 :
10889 31571 : file = find_a_file (&startfile_prefixes, argv[0], true);
10890 31571 : read_specs (file ? file : argv[0], false, false);
10891 :
10892 31571 : return NULL;
10893 : }
10894 :
10895 : /* %:find-file spec function. This function replaces its argument by
10896 : the file found through find_file, that is the -print-file-name gcc
10897 : program option. */
10898 : static const char *
10899 0 : find_file_spec_function (int argc, const char **argv)
10900 : {
10901 0 : const char *file;
10902 :
10903 0 : if (argc != 1)
10904 0 : abort ();
10905 :
10906 0 : file = find_file (argv[0]);
10907 0 : return file;
10908 : }
10909 :
10910 :
10911 : /* %:find-plugindir spec function. This function replaces its argument
10912 : by the -iplugindir=<dir> option. `dir' is found through find_file, that
10913 : is the -print-file-name gcc program option. */
10914 : static const char *
10915 428 : find_plugindir_spec_function (int argc, const char **argv ATTRIBUTE_UNUSED)
10916 : {
10917 428 : const char *option;
10918 :
10919 428 : if (argc != 0)
10920 0 : abort ();
10921 :
10922 428 : option = concat ("-iplugindir=", find_file ("plugin"), NULL);
10923 428 : return option;
10924 : }
10925 :
10926 :
10927 : /* %:print-asm-header spec function. Print a banner to say that the
10928 : following output is from the assembler. */
10929 :
10930 : static const char *
10931 0 : print_asm_header_spec_function (int arg ATTRIBUTE_UNUSED,
10932 : const char **argv ATTRIBUTE_UNUSED)
10933 : {
10934 0 : printf (_("Assembler options\n=================\n\n"));
10935 0 : printf (_("Use \"-Wa,OPTION\" to pass \"OPTION\" to the assembler.\n\n"));
10936 0 : fflush (stdout);
10937 0 : return NULL;
10938 : }
10939 :
10940 : /* Get a random number for -frandom-seed */
10941 :
10942 : static unsigned HOST_WIDE_INT
10943 636 : get_random_number (void)
10944 : {
10945 636 : unsigned HOST_WIDE_INT ret = 0;
10946 636 : int fd;
10947 :
10948 636 : fd = open ("/dev/urandom", O_RDONLY);
10949 636 : if (fd >= 0)
10950 : {
10951 636 : read (fd, &ret, sizeof (HOST_WIDE_INT));
10952 636 : close (fd);
10953 636 : if (ret)
10954 : return ret;
10955 : }
10956 :
10957 : /* Get some more or less random data. */
10958 : #ifdef HAVE_GETTIMEOFDAY
10959 0 : {
10960 0 : struct timeval tv;
10961 :
10962 0 : gettimeofday (&tv, NULL);
10963 0 : ret = tv.tv_sec * 1000 + tv.tv_usec / 1000;
10964 : }
10965 : #else
10966 : {
10967 : time_t now = time (NULL);
10968 :
10969 : if (now != (time_t)-1)
10970 : ret = (unsigned) now;
10971 : }
10972 : #endif
10973 :
10974 0 : return ret ^ getpid ();
10975 : }
10976 :
10977 : /* %:compare-debug-dump-opt spec function. Save the last argument,
10978 : expected to be the last -fdump-final-insns option, or generate a
10979 : temporary. */
10980 :
10981 : static const char *
10982 1265 : compare_debug_dump_opt_spec_function (int arg,
10983 : const char **argv ATTRIBUTE_UNUSED)
10984 : {
10985 1265 : char *ret;
10986 1265 : char *name;
10987 1265 : int which;
10988 1265 : static char random_seed[HOST_BITS_PER_WIDE_INT / 4 + 3];
10989 :
10990 1265 : if (arg != 0)
10991 0 : fatal_error (input_location,
10992 : "too many arguments to %%:compare-debug-dump-opt");
10993 :
10994 1265 : do_spec_2 ("%{fdump-final-insns=*:%*}", NULL);
10995 1265 : do_spec_1 (" ", 0, NULL);
10996 :
10997 1265 : if (argbuf.length () > 0
10998 1265 : && strcmp (argv[argbuf.length () - 1], ".") != 0)
10999 : {
11000 0 : if (!compare_debug)
11001 : return NULL;
11002 :
11003 0 : name = xstrdup (argv[argbuf.length () - 1]);
11004 0 : ret = NULL;
11005 : }
11006 : else
11007 : {
11008 1265 : if (argbuf.length () > 0)
11009 6 : do_spec_2 ("%B.gkd", NULL);
11010 1259 : else if (!compare_debug)
11011 : return NULL;
11012 : else
11013 1259 : do_spec_2 ("%{!save-temps*:%g.gkd}%{save-temps*:%B.gkd}", NULL);
11014 :
11015 1265 : do_spec_1 (" ", 0, NULL);
11016 :
11017 1265 : gcc_assert (argbuf.length () > 0);
11018 :
11019 1265 : name = xstrdup (argbuf.last ());
11020 :
11021 1265 : char *arg = quote_spec (xstrdup (name));
11022 1265 : ret = concat ("-fdump-final-insns=", arg, NULL);
11023 1265 : free (arg);
11024 : }
11025 :
11026 1265 : which = compare_debug < 0;
11027 1265 : debug_check_temp_file[which] = name;
11028 :
11029 1265 : if (!which)
11030 : {
11031 636 : unsigned HOST_WIDE_INT value = get_random_number ();
11032 :
11033 636 : sprintf (random_seed, HOST_WIDE_INT_PRINT_HEX, value);
11034 : }
11035 :
11036 1265 : if (*random_seed)
11037 : {
11038 1265 : char *tmp = ret;
11039 1265 : ret = concat ("%{!frandom-seed=*:-frandom-seed=", random_seed, "} ",
11040 : ret, NULL);
11041 1265 : free (tmp);
11042 : }
11043 :
11044 1265 : if (which)
11045 629 : *random_seed = 0;
11046 :
11047 : return ret;
11048 : }
11049 :
11050 : /* %:compare-debug-self-opt spec function. Expands to the options
11051 : that are to be passed in the second compilation of
11052 : compare-debug. */
11053 :
11054 : static const char *
11055 1270 : compare_debug_self_opt_spec_function (int arg,
11056 : const char **argv ATTRIBUTE_UNUSED)
11057 : {
11058 1270 : if (arg != 0)
11059 0 : fatal_error (input_location,
11060 : "too many arguments to %%:compare-debug-self-opt");
11061 :
11062 1270 : if (compare_debug >= 0)
11063 : return NULL;
11064 :
11065 635 : return concat ("\
11066 : %<o %<MD %<MMD %<MF* %<MG %<MP %<MQ* %<MT* \
11067 : %<fdump-final-insns=* -w -S -o %j \
11068 : %{!fcompare-debug-second:-fcompare-debug-second} \
11069 635 : ", compare_debug_opt, NULL);
11070 : }
11071 :
11072 : /* %:pass-through-libs spec function. Finds all -l options and input
11073 : file names in the lib spec passed to it, and makes a list of them
11074 : prepended with the plugin option to cause them to be passed through
11075 : to the final link after all the new object files have been added. */
11076 :
11077 : const char *
11078 92400 : pass_through_libs_spec_func (int argc, const char **argv)
11079 : {
11080 92400 : char *prepended = xstrdup (" ");
11081 92400 : int n;
11082 : /* Shlemiel the painter's algorithm. Innately horrible, but at least
11083 : we know that there will never be more than a handful of strings to
11084 : concat, and it's only once per run, so it's not worth optimising. */
11085 739616 : for (n = 0; n < argc; n++)
11086 : {
11087 647216 : char *old = prepended;
11088 : /* Anything that isn't an option is a full path to an output
11089 : file; pass it through if it ends in '.a'. Among options,
11090 : pass only -l. */
11091 647216 : if (argv[n][0] == '-' && argv[n][1] == 'l')
11092 : {
11093 603836 : const char *lopt = argv[n] + 2;
11094 : /* Handle both joined and non-joined -l options. If for any
11095 : reason there's a trailing -l with no joined or following
11096 : arg just discard it. */
11097 603836 : if (!*lopt && ++n >= argc)
11098 : break;
11099 603836 : else if (!*lopt)
11100 0 : lopt = argv[n];
11101 603836 : prepended = concat (prepended, "-plugin-opt=-pass-through=-l",
11102 : lopt, " ", NULL);
11103 603836 : }
11104 43380 : else if (!strcmp (".a", argv[n] + strlen (argv[n]) - 2))
11105 : {
11106 0 : prepended = concat (prepended, "-plugin-opt=-pass-through=",
11107 : argv[n], " ", NULL);
11108 : }
11109 647216 : if (prepended != old)
11110 603836 : free (old);
11111 : }
11112 92400 : return prepended;
11113 : }
11114 :
11115 : static bool
11116 534879 : not_actual_file_p (const char *name)
11117 : {
11118 534879 : return (strcmp (name, "-") == 0
11119 534879 : || strcmp (name, HOST_BIT_BUCKET) == 0);
11120 : }
11121 :
11122 : /* %:dumps spec function. Take an optional argument that overrides
11123 : the default extension for -dumpbase and -dumpbase-ext.
11124 : Return -dumpdir, -dumpbase and -dumpbase-ext, if needed. */
11125 : const char *
11126 293767 : dumps_spec_func (int argc, const char **argv ATTRIBUTE_UNUSED)
11127 : {
11128 293767 : const char *ext = dumpbase_ext;
11129 293767 : char *p;
11130 :
11131 293767 : char *args[3] = { NULL, NULL, NULL };
11132 293767 : int nargs = 0;
11133 :
11134 : /* Do not compute a default for -dumpbase-ext when -dumpbase was
11135 : given explicitly. */
11136 293767 : if (dumpbase && *dumpbase && !ext)
11137 293767 : ext = "";
11138 :
11139 293767 : if (argc == 1)
11140 : {
11141 : /* Do not override the explicitly-specified -dumpbase-ext with
11142 : the specs-provided overrider. */
11143 0 : if (!ext)
11144 0 : ext = argv[0];
11145 : }
11146 293767 : else if (argc != 0)
11147 0 : fatal_error (input_location, "too many arguments for %%:dumps");
11148 :
11149 293767 : if (dumpdir)
11150 : {
11151 107138 : p = quote_spec_arg (xstrdup (dumpdir));
11152 107138 : args[nargs++] = concat (" -dumpdir ", p, NULL);
11153 107138 : free (p);
11154 : }
11155 :
11156 293767 : if (!ext)
11157 270638 : ext = input_basename + basename_length;
11158 :
11159 : /* Use the precomputed outbase, or compute dumpbase from
11160 : input_basename, just like %b would. */
11161 293767 : char *base;
11162 :
11163 293767 : if (dumpbase && *dumpbase)
11164 : {
11165 23129 : base = xstrdup (dumpbase);
11166 23129 : p = base + outbase_length;
11167 23129 : gcc_checking_assert (strncmp (base, outbase, outbase_length) == 0);
11168 23129 : gcc_checking_assert (strcmp (p, ext) == 0);
11169 : }
11170 270638 : else if (outbase_length)
11171 : {
11172 168363 : base = xstrndup (outbase, outbase_length);
11173 168363 : p = NULL;
11174 : }
11175 : else
11176 : {
11177 102275 : base = xstrndup (input_basename, suffixed_basename_length);
11178 102275 : p = base + basename_length;
11179 : }
11180 :
11181 293767 : if (compare_debug < 0 || !p || strcmp (p, ext) != 0)
11182 : {
11183 629 : if (p)
11184 9 : *p = '\0';
11185 :
11186 168372 : const char *gk;
11187 168372 : if (compare_debug < 0)
11188 : gk = ".gk";
11189 : else
11190 167743 : gk = "";
11191 :
11192 168372 : p = concat (base, gk, ext, NULL);
11193 :
11194 168372 : free (base);
11195 168372 : base = p;
11196 : }
11197 :
11198 293767 : base = quote_spec_arg (base);
11199 293767 : args[nargs++] = concat (" -dumpbase ", base, NULL);
11200 293767 : free (base);
11201 :
11202 293767 : if (*ext)
11203 : {
11204 269600 : p = quote_spec_arg (xstrdup (ext));
11205 269600 : args[nargs++] = concat (" -dumpbase-ext ", p, NULL);
11206 269600 : free (p);
11207 : }
11208 :
11209 293767 : const char *ret = concat (args[0], args[1], args[2], NULL);
11210 1258039 : while (nargs > 0)
11211 670505 : free (args[--nargs]);
11212 :
11213 293767 : return ret;
11214 : }
11215 :
11216 : /* Returns "" if ARGV[ARGC - 2] is greater than ARGV[ARGC-1].
11217 : Otherwise, return NULL. */
11218 :
11219 : static const char *
11220 409861 : greater_than_spec_func (int argc, const char **argv)
11221 : {
11222 409861 : char *converted;
11223 :
11224 409861 : if (argc == 1)
11225 : return NULL;
11226 :
11227 252 : gcc_assert (argc >= 2);
11228 :
11229 252 : long arg = strtol (argv[argc - 2], &converted, 10);
11230 252 : gcc_assert (converted != argv[argc - 2]);
11231 :
11232 252 : long lim = strtol (argv[argc - 1], &converted, 10);
11233 252 : gcc_assert (converted != argv[argc - 1]);
11234 :
11235 252 : if (arg > lim)
11236 : return "";
11237 :
11238 : return NULL;
11239 : }
11240 :
11241 : /* Returns "" if debug_info_level is greater than ARGV[ARGC-1].
11242 : Otherwise, return NULL. */
11243 :
11244 : static const char *
11245 260013 : debug_level_greater_than_spec_func (int argc, const char **argv)
11246 : {
11247 260013 : char *converted;
11248 :
11249 260013 : if (argc != 1)
11250 0 : fatal_error (input_location,
11251 : "wrong number of arguments to %%:debug-level-gt");
11252 :
11253 260013 : long arg = strtol (argv[0], &converted, 10);
11254 260013 : gcc_assert (converted != argv[0]);
11255 :
11256 260013 : if (debug_info_level > arg)
11257 45416 : return "";
11258 :
11259 : return NULL;
11260 : }
11261 :
11262 : /* Returns "" if dwarf_version is greater than ARGV[ARGC-1].
11263 : Otherwise, return NULL. */
11264 :
11265 : static const char *
11266 128790 : dwarf_version_greater_than_spec_func (int argc, const char **argv)
11267 : {
11268 128790 : char *converted;
11269 :
11270 128790 : if (argc != 1)
11271 0 : fatal_error (input_location,
11272 : "wrong number of arguments to %%:dwarf-version-gt");
11273 :
11274 128790 : long arg = strtol (argv[0], &converted, 10);
11275 128790 : gcc_assert (converted != argv[0]);
11276 :
11277 128790 : if (dwarf_version > arg)
11278 127919 : return "";
11279 :
11280 : return NULL;
11281 : }
11282 :
11283 : static void
11284 35195 : path_prefix_reset (path_prefix *prefix)
11285 : {
11286 35195 : struct prefix_list *iter, *next;
11287 35195 : iter = prefix->plist;
11288 139636 : while (iter)
11289 : {
11290 104441 : next = iter->next;
11291 104441 : free (const_cast <char *> (iter->prefix));
11292 104441 : XDELETE (iter);
11293 104441 : iter = next;
11294 : }
11295 35195 : prefix->plist = 0;
11296 35195 : prefix->max_len = 0;
11297 35195 : }
11298 :
11299 : /* The function takes 3 arguments: OPTION name, file name and location
11300 : where we search for Fortran modules.
11301 : When the FILE is found by find_file, return OPTION=path_to_file. */
11302 :
11303 : static const char *
11304 31763 : find_fortran_preinclude_file (int argc, const char **argv)
11305 : {
11306 31763 : char *result = NULL;
11307 31763 : if (argc != 3)
11308 : return NULL;
11309 :
11310 31763 : struct path_prefix prefixes = { 0, 0, "preinclude" };
11311 :
11312 : /* Search first for 'finclude' folder location for a header file
11313 : installed by the compiler (similar to omp_lib.h). */
11314 31763 : add_prefix (&prefixes, argv[2], NULL, 0, 0, 0);
11315 : #ifdef TOOL_INCLUDE_DIR
11316 : /* Then search: <prefix>/<target>/<include>/finclude */
11317 31763 : add_prefix (&prefixes, TOOL_INCLUDE_DIR "/finclude/",
11318 : NULL, 0, 0, 0);
11319 : #endif
11320 : #ifdef NATIVE_SYSTEM_HEADER_DIR
11321 : /* Then search: <sysroot>/usr/include/finclude/<multilib> */
11322 31763 : add_sysrooted_hdrs_prefix (&prefixes, NATIVE_SYSTEM_HEADER_DIR "/finclude/",
11323 : NULL, 0, 0, 0);
11324 : #endif
11325 :
11326 31763 : const char *path = find_a_file (&include_prefixes, argv[1], false);
11327 31763 : if (path != NULL)
11328 0 : result = concat (argv[0], path, NULL);
11329 : else
11330 : {
11331 31763 : path = find_a_file (&prefixes, argv[1], false);
11332 31763 : if (path != NULL)
11333 31763 : result = concat (argv[0], path, NULL);
11334 : }
11335 :
11336 31763 : path_prefix_reset (&prefixes);
11337 31763 : return result;
11338 : }
11339 :
11340 : /* The function takes any number of arguments and joins them together,
11341 : escaping any special characters.
11342 :
11343 : This seems to be necessary to build "-fjoined=foo.b" from "-fseparate foo.a"
11344 : with a %{fseparate*:-fjoined=%.b$*} rule without adding undesired spaces:
11345 : when doing $* replacement we first replace $* with the rest of the switch
11346 : (in this case ""), and then add any arguments as arguments after the result,
11347 : resulting in "-fjoined= foo.b". Using this function with e.g.
11348 : %{fseparate*:-fjoined=%:join(%.b$*)} gets multiple words as separate argv
11349 : elements instead of separated by spaces, and we paste them together. */
11350 :
11351 : static const char *
11352 39 : join_spec_func (int argc, const char **argv)
11353 : {
11354 39 : const char *result = argv[0];
11355 39 : if (argc != 1)
11356 : {
11357 117 : for (int i = 0; i < argc; ++i)
11358 78 : obstack_grow (&obstack, argv[i], strlen (argv[i]));
11359 39 : obstack_1grow (&obstack, '\0');
11360 39 : result = XOBFINISH (&obstack, const char *);
11361 : }
11362 39 : return quote_spec (xstrdup (result));
11363 : }
11364 :
11365 : /* If any character in ORIG fits QUOTE_P (_, P), reallocate the string
11366 : so as to precede every one of them with a backslash. Return the
11367 : original string or the reallocated one. */
11368 :
11369 : static inline char *
11370 877501 : quote_string (char *orig, bool (*quote_p)(char, void *), void *p)
11371 : {
11372 877501 : int len, number_of_space = 0;
11373 :
11374 20032910 : for (len = 0; orig[len]; len++)
11375 19155409 : if (quote_p (orig[len], p))
11376 0 : number_of_space++;
11377 :
11378 877501 : if (number_of_space)
11379 : {
11380 0 : char *new_spec = (char *) xmalloc (len + number_of_space + 1);
11381 0 : int j, k;
11382 0 : for (j = 0, k = 0; j <= len; j++, k++)
11383 : {
11384 0 : if (quote_p (orig[j], p))
11385 0 : new_spec[k++] = '\\';
11386 0 : new_spec[k] = orig[j];
11387 : }
11388 0 : free (orig);
11389 0 : return new_spec;
11390 : }
11391 : else
11392 : return orig;
11393 : }
11394 :
11395 : /* Return true iff C is any of the characters convert_white_space
11396 : should quote. */
11397 :
11398 : static inline bool
11399 12761436 : whitespace_to_convert_p (char c, void *)
11400 : {
11401 12761436 : return (c == ' ' || c == '\t');
11402 : }
11403 :
11404 : /* Insert backslash before spaces in ORIG (usually a file path), to
11405 : avoid being broken by spec parser.
11406 :
11407 : This function is needed as do_spec_1 treats white space (' ' and '\t')
11408 : as the end of an argument. But in case of -plugin /usr/gcc install/xxx.so,
11409 : the file name should be treated as a single argument rather than being
11410 : broken into multiple. Solution is to insert '\\' before the space in a
11411 : file name.
11412 :
11413 : This function converts and only converts all occurrence of ' '
11414 : to '\\' + ' ' and '\t' to '\\' + '\t'. For example:
11415 : "a b" -> "a\\ b"
11416 : "a b" -> "a\\ \\ b"
11417 : "a\tb" -> "a\\\tb"
11418 : "a\\ b" -> "a\\\\ b"
11419 :
11420 : orig: input null-terminating string that was allocated by xalloc. The
11421 : memory it points to might be freed in this function. Behavior undefined
11422 : if ORIG wasn't xalloced or was freed already at entry.
11423 :
11424 : Return: ORIG if no conversion needed. Otherwise a newly allocated string
11425 : that was converted from ORIG. */
11426 :
11427 : static char *
11428 205701 : convert_white_space (char *orig)
11429 : {
11430 205701 : return quote_string (orig, whitespace_to_convert_p, NULL);
11431 : }
11432 :
11433 : /* Return true iff C matches any of the spec active characters. */
11434 : static inline bool
11435 6393973 : quote_spec_char_p (char c, void *)
11436 : {
11437 6393973 : switch (c)
11438 : {
11439 : case ' ':
11440 : case '\t':
11441 : case '\n':
11442 : case '|':
11443 : case '%':
11444 : case '\\':
11445 : return true;
11446 :
11447 6393973 : default:
11448 6393973 : return false;
11449 : }
11450 : }
11451 :
11452 : /* Like convert_white_space, but deactivate all active spec chars by
11453 : quoting them. */
11454 :
11455 : static inline char *
11456 671800 : quote_spec (char *orig)
11457 : {
11458 1304 : return quote_string (orig, quote_spec_char_p, NULL);
11459 : }
11460 :
11461 : /* Like quote_spec, but also turn an empty string into the spec for an
11462 : empty argument. */
11463 :
11464 : static inline char *
11465 670505 : quote_spec_arg (char *orig)
11466 : {
11467 670505 : if (!*orig)
11468 : {
11469 9 : free (orig);
11470 9 : return xstrdup ("%\"");
11471 : }
11472 :
11473 670496 : return quote_spec (orig);
11474 : }
11475 :
11476 : /* Restore all state within gcc.cc to the initial state, so that the driver
11477 : code can be safely re-run in-process.
11478 :
11479 : Many const char * variables are referenced by static specs (see
11480 : INIT_STATIC_SPEC above). These variables are restored to their default
11481 : values by a simple loop over the static specs.
11482 :
11483 : For other variables, we directly restore them all to their initial
11484 : values (often implicitly 0).
11485 :
11486 : Free the various obstacks in this file, along with "opts_obstack"
11487 : from opts.cc.
11488 :
11489 : This function also restores any environment variables that were changed. */
11490 :
11491 : void
11492 1144 : driver::finalize ()
11493 : {
11494 1144 : env.restore ();
11495 1144 : diagnostic_finish (global_dc);
11496 :
11497 1144 : is_cpp_driver = 0;
11498 1144 : at_file_supplied = 0;
11499 1144 : print_help_list = 0;
11500 1144 : print_version = 0;
11501 1144 : verbose_only_flag = 0;
11502 1144 : print_subprocess_help = 0;
11503 1144 : use_ld = NULL;
11504 1144 : report_times_to_file = NULL;
11505 1144 : target_system_root = DEFAULT_TARGET_SYSTEM_ROOT;
11506 1144 : target_system_root_changed = 0;
11507 1144 : target_sysroot_suffix = 0;
11508 1144 : target_sysroot_hdrs_suffix = 0;
11509 1144 : save_temps_flag = SAVE_TEMPS_NONE;
11510 1144 : save_temps_overrides_dumpdir = false;
11511 1144 : dumpdir_trailing_dash_added = false;
11512 1144 : free (dumpdir);
11513 1144 : free (dumpbase);
11514 1144 : free (dumpbase_ext);
11515 1144 : free (outbase);
11516 1144 : dumpdir = dumpbase = dumpbase_ext = outbase = NULL;
11517 1144 : dumpdir_length = outbase_length = 0;
11518 1144 : spec_machine = DEFAULT_TARGET_MACHINE;
11519 1144 : greatest_status = 1;
11520 :
11521 1144 : obstack_free (&obstack, NULL);
11522 1144 : obstack_free (&opts_obstack, NULL); /* in opts.cc */
11523 1144 : obstack_free (&collect_obstack, NULL);
11524 :
11525 1144 : link_command_spec = LINK_COMMAND_SPEC;
11526 :
11527 1144 : obstack_free (&multilib_obstack, NULL);
11528 :
11529 1144 : user_specs_head = NULL;
11530 1144 : user_specs_tail = NULL;
11531 :
11532 : /* Within the "compilers" vec, the fields "suffix" and "spec" were
11533 : statically allocated for the default compilers, but dynamically
11534 : allocated for additional compilers. Delete them for the latter. */
11535 1144 : for (int i = n_default_compilers; i < n_compilers; i++)
11536 : {
11537 0 : free (const_cast <char *> (compilers[i].suffix));
11538 0 : free (const_cast <char *> (compilers[i].spec));
11539 : }
11540 1144 : XDELETEVEC (compilers);
11541 1144 : compilers = NULL;
11542 1144 : n_compilers = 0;
11543 :
11544 1144 : linker_options.truncate (0);
11545 1144 : assembler_options.truncate (0);
11546 1144 : preprocessor_options.truncate (0);
11547 :
11548 1144 : path_prefix_reset (&exec_prefixes);
11549 1144 : path_prefix_reset (&startfile_prefixes);
11550 1144 : path_prefix_reset (&include_prefixes);
11551 :
11552 1144 : machine_suffix = 0;
11553 1144 : just_machine_suffix = 0;
11554 1144 : gcc_exec_prefix = 0;
11555 1144 : gcc_libexec_prefix = 0;
11556 1144 : set_static_spec_shared (&md_exec_prefix, MD_EXEC_PREFIX);
11557 1144 : set_static_spec_shared (&md_startfile_prefix, MD_STARTFILE_PREFIX);
11558 1144 : set_static_spec_shared (&md_startfile_prefix_1, MD_STARTFILE_PREFIX_1);
11559 1144 : multilib_dir = 0;
11560 1144 : multilib_os_dir = 0;
11561 1144 : multiarch_dir = 0;
11562 :
11563 : /* Free any specs dynamically-allocated by set_spec.
11564 : These will be at the head of the list, before the
11565 : statically-allocated ones. */
11566 1144 : if (specs)
11567 : {
11568 2288 : while (specs != static_specs)
11569 : {
11570 1144 : spec_list *next = specs->next;
11571 1144 : free (const_cast <char *> (specs->name));
11572 1144 : XDELETE (specs);
11573 1144 : specs = next;
11574 : }
11575 1144 : specs = 0;
11576 : }
11577 52624 : for (unsigned i = 0; i < ARRAY_SIZE (static_specs); i++)
11578 : {
11579 51480 : spec_list *sl = &static_specs[i];
11580 51480 : if (sl->alloc_p)
11581 : {
11582 45770 : free (const_cast <char *> (*(sl->ptr_spec)));
11583 45770 : sl->alloc_p = false;
11584 : }
11585 51480 : *(sl->ptr_spec) = sl->default_ptr;
11586 : }
11587 : #ifdef EXTRA_SPECS
11588 1144 : extra_specs = NULL;
11589 : #endif
11590 :
11591 1144 : processing_spec_function = 0;
11592 :
11593 1144 : clear_args ();
11594 :
11595 1144 : have_c = 0;
11596 1144 : have_o = 0;
11597 :
11598 1144 : temp_names = NULL;
11599 1144 : execution_count = 0;
11600 1144 : signal_count = 0;
11601 :
11602 1144 : temp_filename = NULL;
11603 1144 : temp_filename_length = 0;
11604 1144 : always_delete_queue = NULL;
11605 1144 : failure_delete_queue = NULL;
11606 :
11607 1144 : XDELETEVEC (switches);
11608 1144 : switches = NULL;
11609 1144 : n_switches = 0;
11610 1144 : n_switches_alloc = 0;
11611 :
11612 1144 : compare_debug = 0;
11613 1144 : compare_debug_second = 0;
11614 1144 : compare_debug_opt = NULL;
11615 3432 : for (int i = 0; i < 2; i++)
11616 : {
11617 2288 : switches_debug_check[i] = NULL;
11618 2288 : n_switches_debug_check[i] = 0;
11619 2288 : n_switches_alloc_debug_check[i] = 0;
11620 2288 : debug_check_temp_file[i] = NULL;
11621 : }
11622 :
11623 1144 : XDELETEVEC (infiles);
11624 1144 : infiles = NULL;
11625 1144 : n_infiles = 0;
11626 1144 : n_infiles_alloc = 0;
11627 :
11628 1144 : combine_inputs = false;
11629 1144 : added_libraries = 0;
11630 1144 : XDELETEVEC (outfiles);
11631 1144 : outfiles = NULL;
11632 1144 : spec_lang = 0;
11633 1144 : last_language_n_infiles = 0;
11634 1144 : gcc_input_filename = NULL;
11635 1144 : input_file_number = 0;
11636 1144 : input_filename_length = 0;
11637 1144 : basename_length = 0;
11638 1144 : suffixed_basename_length = 0;
11639 1144 : input_basename = NULL;
11640 1144 : input_suffix = NULL;
11641 : /* We don't need to purge "input_stat", just to unset "input_stat_set". */
11642 1144 : input_stat_set = 0;
11643 1144 : input_file_compiler = NULL;
11644 1144 : arg_going = 0;
11645 1144 : delete_this_arg = 0;
11646 1144 : this_is_output_file = 0;
11647 1144 : this_is_library_file = 0;
11648 1144 : this_is_linker_script = 0;
11649 1144 : input_from_pipe = 0;
11650 1144 : suffix_subst = NULL;
11651 :
11652 1144 : XDELETEVEC (mdswitches);
11653 1144 : mdswitches = NULL;
11654 1144 : n_mdswitches = 0;
11655 :
11656 1144 : used_arg.finalize ();
11657 1144 : }
11658 :
11659 : /* PR jit/64810.
11660 : Targets can provide configure-time default options in
11661 : OPTION_DEFAULT_SPECS. The jit needs to access these, but
11662 : they are expressed in the spec language.
11663 :
11664 : Run just enough of the driver to be able to expand these
11665 : specs, and then call the callback CB on each
11666 : such option. The options strings are *without* a leading
11667 : '-' character e.g. ("march=x86-64"). Finally, clean up. */
11668 :
11669 : void
11670 132 : driver_get_configure_time_options (void (*cb) (const char *option,
11671 : void *user_data),
11672 : void *user_data)
11673 : {
11674 132 : size_t i;
11675 :
11676 132 : obstack_init (&obstack);
11677 132 : init_opts_obstack ();
11678 132 : n_switches = 0;
11679 :
11680 1452 : for (i = 0; i < ARRAY_SIZE (option_default_specs); i++)
11681 1320 : do_option_spec (option_default_specs[i].name,
11682 1320 : option_default_specs[i].spec);
11683 :
11684 396 : for (i = 0; (int) i < n_switches; i++)
11685 : {
11686 264 : gcc_assert (switches[i].part1);
11687 264 : (*cb) (switches[i].part1, user_data);
11688 : }
11689 :
11690 132 : obstack_free (&opts_obstack, NULL);
11691 132 : obstack_free (&obstack, NULL);
11692 132 : n_switches = 0;
11693 132 : }
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